Search results “Principles of evolutionary theory”
Natural Selection - Crash Course Biology #14
Hank guides us through the process of natural selection, the key mechanism of evolution. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter: http://www.twitter.com/theCrashCourse Table of Contents: 1) Natural Selection 1:27 2) Adaptation 2:56 3) Fitness 3:36 4) Four Principals 3:54 a. Variations 4:01 b. Heritability 4:17 c. "The Struggle for Existence" 4:25 d. Survival and Reproductive Rates 5:00 5) Biolography 5:59 6) Modes of Selection 7:40 a. Directional Selection 8:17 b. Stabilizing Selection 8:56 c. Disruptive Selection 9:27 7) Sexual Selection 10:22 8) Artificial Selection 11:24 References for this episode can be found in the Google document here: http://dft.ba/-2Ank This video uses the following sounds from Freesound.org: "20071104.forest.04.binaural.mp3" by dobroide "ForestBirds.wav" by HerbertBoland crashcourse, science, biology, natural selection, genetics, peppered moth, inherited traits, population genetics, charles darwin, darwin, on the origin of species, evolution, adaptation, galapagos finches, fitness, variation, phenotype, heritable, malthus, survival rate, reproductive rate, crossbreeding, inbreeding, genotype, directional selection, stabilizing selection, disruptive selection, selective pressures, sexual selection, artificial selection, selective breeding Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1816806 CrashCourse
Charles Darwin - The Theory Of Natural Selection
Learn a bit about Charles Darwin's Theory of Natural Selection with this neato cartoon. There are giraffes and stuff! ----------- VOICES- Narrator - Rebecca Duenow Darwin - Chris "Mo" Mochinski Chalk - Chris "Mo" Mochinski DIRECTED BY - Rebecca Duenow ANIMATION - Chris "Mo" Mochinski Created with Anime Studio Pro 9.5, Pixelmator, Logic Pro X and iMovie. All artwork is original except the chalkboard background, c/o Shutterstock.com.
Views: 425602 Chris Mochinski
What is the Theory of Evolution?
What is Charles Darwin's Theory of Evolution? Let us not get controversial, but simply stick to the facts about Charles Darwin and his theory of Evolution.  An English Naturalist, Mr. Darwin definitely gave us all a lot to think about. Darwin's theory of evolution actually contains two major ideas.  The first idea posed by Mr. Darwin theorized the idea that evolution occurs. In other words, organisms change over time, and life on Earth has changed as descendants diverged from common ancestors in the past. The second idea from Mr. Darwin is that evolution occurs by natural selection. Natural selection is the process in which living things with beneficial traits produce more offspring than others. This results in changes in the traits of living things over time. In Charles Darwin's day, the early 1800's, most people believed that all species were created at the same time and remained unchanged thereafter. They also believed that Earth was merely 6,000 years old. Darwin's ideas revolutionized biology as we know it! How did Mr. Darwin come up with these important ideas? It all started when he went on a voyage. In 1831, when Darwin was just 22 years old, he set sail on a scientific expedition on a ship called the HMS Beagle. He was the naturalist on the voyage. As a naturalist, it was his job to observe and collect specimens of plants, animals, rocks, and fossils wherever the expedition went ashore. Darwin was fascinated by this nature, and his job on the Beagle was the most important time of his life. He spent over 3 years of the 5-year trip exploring nature on distant continents and islands. While he was away, a former teacher published Darwin's accounts of his observations. By the time Darwin finally returned to England, he had become famous as a naturalist. During the long voyage, Charles Darwin made many observations that helped him form his theory of evolution.  Some of what he found included: -- Tropical rain forests and other new habitats where he saw many plants and animals he had never seen before -- An earthquake that lifted the ocean floor 9 feet (2.7 meters) above sea level. -- He also found rocks containing fossil sea shells in mountains far above sea level. These observations suggested that continents and oceans had changed dramatically over time and continue to change dramatically. -- Rock ledges that had clearly once been beaches that had gradually built up over time. This suggested that slow, steady processes also change the surface of the Earth. -- Fossils of gigantic extinct mammals, such as the ground sloth This was hard evidence that organisms looked very different in the past, as it suggested that living things, including the Earth's surface, change over time.
Views: 285212 red Orbit
Five fingers of evolution - Paul Andersen
View full lesson: http://ed.ted.com/lessons/five-fingers-of-evolution How can a "thumbs up" sign help us remember five processes that impact evolution? The story of the Five Fingers of Evolution gives us a clever way of understanding change in gene pools over time. Lesson by Paul Andersen, animation by Alan Foreman.
Views: 706975 TED-Ed
How Evolution works
The mechanisms of evolution explained in one video. The theory of evolution explains how the enormous variety of life could come into existence. How it is possible for primitive life forms to spawn the millions of different creatures, that exist today. Unfortunately, evolution is often misunderstood, because it's mechanisms seem counter intuitive. By using visualizations, infographics and appealing characters, the viewer is more likely to understand it the complex information. More than that, by presenting the information in an entertaining way, the information is more likely to sink in. Short videos, explaining things. For example Evolution, the Universe, Stock Market or controversial topics like Fracking. Because we love science. We would love to interact more with you, our viewers to figure out what topics you want to see. If you have a suggestion for future videos or feedback, drop us a line! :) We're a bunch of Information designers from munich, visit us on facebook or behance to say hi! https://www.facebook.com/Kurzgesagt https://www.behance.net/kurzgesagt How Evolution Works Help us caption & translate this video! http://www.youtube.com/timedtext_cs_panel?c=UCsXVk37bltHxD1rDPwtNM8Q&tab=2
Fact vs. Theory vs. Hypothesis vs. Law… EXPLAINED!
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Think you know the difference? Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Some people try to attack things like evolution by natural selection and man-made climate change by saying “Oh, that’s just a THEORY!” Yes, they are both theories. Stop saying it like it’s a bad thing! It’s time we learn the difference between a fact, a theory, a hypothesis, and a scientific law. Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen Inc. Kate Eads - Producer Andrew Matthews - Editing/Motion Graphics/Animation Katie Graham - Camera John Knudsen - Gaffer Theme music: “Ouroboros” by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted)
Views: 607959 It's Okay To Be Smart
Pious Charity: Rabbi Maimonides, Suspended Coffees, and Evolutionary Theory (THE SAAD TRUTH_652)
An evolutionary principle enunciated close to 900 years ago by Maimonides finds its manifestation in the coffee shops of Naples (and now other cities). ________________________________________ Support THE SAAD TRUTH via Patreon: https://www.patreon.com/GadSaad Support THE SAAD TRUTH via PayPal: https://www.paypal.me/GadSaad THE SAAD TRUTH online store: http://www.teespring.com/stores/the-saad-truth Like my Facebook page: https://www.facebook.com/Dr.Gad.Saad Follow me on Twitter: https://twitter.com/GadSaad (@GadSaad)
Views: 4528 Gad Saad
Principles of Evolutionary Architecture
With business models and business needs changing so rapidly, an adaptable architecture is critical to enable systems to change to cope. Historically, adaptability has been sought through anticipating where a system must be adaptable and through various architectural approaches. However, recent experiences have shown these approaches to be inadequate, at least as currently practiced. This session presents some principles of evolutionary architecture that enable systems to respond to change without needing to predict the future. The presentation then describes three approaches that realize these principles and discusses how these approaches support system adaptability in an evolutionary way. Author: Rebecca Parsons Dr. Rebecca Parsons is ThoughtWorks' Chief Technology Officer. She has more than 20 years' experience in leading the creation of large-scale distributed and services based applications, and the integration of disparate systems. Before coming to ThoughtWorks she worked as an assistant professor of computer science at the University of Central Florida, after completing a Director's Post Doctoral Fellowship at the Los Alamos National Laboratory researching issues in parallel and distributed computation, genetic algorithms, computational biology and non-linear dynamical systems. Rebecca received a BS in Computer Science and Economics from Bradley University, and both an MS and Ph.D. in Computer Science from Rice University. Before coming to ThoughtWorks she worked as an assistant professor of computer science at the University of Central Florida. She also worked as director's post doctoral fellow at the Los Alamos National Laboratory researching issues in parallel and distributed computation, genetic algorithms, computational biology and non-linear dynamical systems. Dr. Parsons holds a [Ph.D] in Computer Science from Rice University View more trainings by Rebecca Parsons at https://www.parleys.com/author/rebecca-parsons Find more related tutorials at https://www.parleys.com/category/developer-training-tutorials
Views: 211 Oracle Developers
What is Evolution?
Support Stated Clearly on Patreon: https://www.patreon.com/statedclearly Evolution is often considered a complex and controversial topic but it's actually a very simple concept to understand. Watch this short animation to see how evolution works. Share it with your friends on Facebook who might be confused or may have been mislead about the evolutionary process. You can learn more about genetics and evolution by visiting our website at http://www.statedclearly.com This video is our first animation with illustrations from the talented Rosemary Mosco. If you don't already know her work, make sure to check out her website at http://BirdAndMoon.com You'll love her biology comics, posters and t-shirts. This video features custom music by AD at Proof Avenue. Check his other work at http://ProofAvenue.com Sources: The definition of Evolution: "Genetic change in a population of organisms; in general, evolution leads to progressive change from simple to complex." - Biology, Seventh Edition, Raven, Johnson, Losos, Singer (college textbook) pg G-6 glossary "Descent with modification...change in the genetic composition of a population from generation to generation." - Biology Eighth Edition, Campbell, Reece (college textbook) pg G-14 glossary "Biological evolution, simply put, is descent with modification. This definition encompasses small-scale evolution (changes in gene frequency in a population from one generation to the next) and large-scale evolution (the descent of different species from a common ancestor over many generations). Evolution helps us to understand the history of life." University of California Berkley http://evolution.berkeley.edu/evosite/evo101/IIntro.shtml Dogs evolved from wolves: http://news.bbc.co.uk/2/hi/science/nature/2498669.stm Thanks to Hedvig Francke for providing Closed Captions in Swedish.
Views: 1708389 Stated Clearly
Introduction to Evolution and Natural Selection
Introduction to evolution, variation in a population and natural selection More free lessons at: http://www.khanacademy.org/video?v=GcjgWov7mTM About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.
Views: 1941491 Khan Academy
What is Evolutionary Theory?
Richard Lewontin, Science Board, Santa Fe Institute November 11, 2003 This lecture will discuss the origins of the theory of organic evolution, what the basic structure of Darwin's theory was, what evolutionary theory is really meant to explain and how the modern understanding of the process of evolution is different from Darwin's original idea. It will also discuss what the deep problems of evolutionary explanation are and why evolution differs from the usual simple model of what is required of a science.
Views: 11245 Santa Fe Institute
Evolution: It's a Thing - Crash Course Biology #20
Hank gets real with us in a discussion of evolution - it's a thing, not a debate. Gene distribution changes over time, across successive generations, to give rise to diversity at every level of biological organization. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter: http://www.twitter.com/TheCrashCourse Table of Contents 1) The Theory of Evolution 1:49 2) Fossils 2:42 3) Homologous Structures 4:36 4) Biogeography 7:02 5) Direct Observation 8:52 References for this episode can be found in the Google document here: http://dft.ba/-2Oyu evolution, theory, biology, science, crashcourse, genetics, gene, facts, fossil, fossil record, dinosaur, extinct, extinction, organism, dorudon, rodhocetus, vestigial, structure, similarity, homologous structure, related, relationship, morganucodon, fore limb, hind limb, vertebrate, molecule, DNA, RNA, chimpanzee, fruit fly, biogeography, marsupial, finches, direct observation, drug resistance, resistance, selective pressure, italian wall lizard Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1446533 CrashCourse
3. Adaptive Evolution: Natural Selection
Principles of Evolution, Ecology and Behavior (EEB 122) Adaptive Evolution is driven by natural selection. Natural selection is not "survival of the fittest," but rather "reproduction of the fittest." Evolution can occur at many different speeds based on the strength of the selection driving it. These types of selection can result in directional, stabilizing, and disruptive outcomes. They can be driven by frequency-dependent selection and sexual selection, in addition to more standard types of selection. 00:00 - Chapter 1. Introduction 02:36 - Chapter 2. Strength of Selection and the Speed of Evolution 24:06 - Chapter 3. Why Evolution Can Be Slow 30:50 - Chapter 4. Types of Selection 42:01 - Chapter 5. Large Scale Selection Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses This course was recorded in Spring 2009.
Views: 42574 YaleCourses
Darwin's Theory of Evolution: Final Thoughts on Evolutionary Principles
This video is part of the "Evolutionary Theory" lecture series. To see the full list of videos, visit: http://www.youtube.com/playlist?list=PL7E4A78437CC6BE9D For materials associated with this topic visit: http://www.scienceclassisgreat.com/bio/07%20-%20Evolution/1%20-%20Evolutionary%20Theory/ Summary: Mr. Lima talks about the main principles of evolution and reviews the main ideas discussed throughout his description of the evolutionary process
Views: 503 scienceclassisgreat
Charles Darwin's Theory of Evolution [in Hindi]
In this lecture, we discuss the theory of evolution. We talk about Charles Darwin and his voyage on the ship HMS Beagle, his theory of evolution, and the evidence and the basic insights that led him to his theory. For more educational videos, visit: www.mayankacademy.com
Views: 81935 mayankacademy
Hardy Weinberg Principle
This lecture explains about the Hardy Weinberg principle in details. The Hardy–Weinberg principle, also known as the Hardy–Weinberg equilibrium, model, theorem, or law, states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. It states that the gene frequency will remain constant in a population if there is no evolutionary influences. For more information, log on to- http://www.shomusbiology.com/ Get Shomu's Biology DVD set here- http://www.shomusbiology.com/dvd-store/ Download the study materials here- http://shomusbiology.com/bio-materials.html Remember Shomu’s Biology is created to spread the knowledge of life science and biology by sharing all this free biology lectures video and animation presented by Suman Bhattacharjee in YouTube. All these tutorials are brought to you for free. Please subscribe to our channel so that we can grow together. You can check for any of the following services from Shomu’s Biology- Buy Shomu’s Biology lecture DVD set- www.shomusbiology.com/dvd-store Shomu’s Biology assignment services – www.shomusbiology.com/assignment -help Join Online coaching for CSIR NET exam – www.shomusbiology.com/net-coaching We are social. Find us on different sites here- Our Website – www.shomusbiology.com Facebook page- https://www.facebook.com/ShomusBiology/ Twitter - https://twitter.com/shomusbiology SlideShare- www.slideshare.net/shomusbiology Google plus- https://plus.google.com/113648584982732129198 LinkedIn - https://www.linkedin.com/in/suman-bhattacharjee-2a051661 Youtube- https://www.youtube.com/user/TheFunsuman Thank you for watching
Views: 101119 Shomu's Biology
11. Life History Evolution
Principles of Evolution, Ecology and Behavior (EEB 122) Life history covers three main classes of traits in organisms: age and size at maturity, number and size of offspring, and lifespan and reproductive investment. Organisms must make tradeoffs among these traits that typically cause them to come to evolutionary equilibrium at intermediate values. Life history traits are evolutionary solutions to the ecological problems of the risk of mortality and the acquisition of food, and they are expressed in reaction norms that determine the particular traits that an organism will exhibit when its genes encounter a specific environment during development. 00:00 - Chapter 1. Introduction 04:53 - Chapter 2. Life History and the History of Ideas 08:56 - Chapter 3. Age and Size at Maturity 23:38 - Chapter 4. Size and Number of Babies 31:49 - Chapter 5. Lifespan and Aging 42:32 - Chapter 6. Summary Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses This course was recorded in Spring 2009.
Views: 19222 YaleCourses
Economic Schools of Thought: Crash Course Economics #14
We talk a lot about Keynesian economics on this show, pretty much because the real world currently runs on Keynesian principles. That said, there are some other economic ideas out there, and today we're going to talk about a few of them. So, if you've been aching to hear about socialism, communism, the Chicago School, or the Austrian School, this episode is for you. Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Fatima Iqbal, Penelope Flagg, Eugenia Karlson, Alex S, Jirat, Tim Curwick, Christy Huddleston, Eric Kitchen, Moritz Schmidt, Today I Found Out, Avi Yashchin, Chris Peters, Eric Knight, Jacob Ash, Simun Niclasen, Jan Schmid, Elliot Beter, Sandra Aft, SR Foxley, Ian Dundore, Daniel Baulig, Jason A Saslow, Robert Kunz, Jessica Wode, Steve Marshall, Anna-Ester Volozh, Christian, Caleb Weeks, Jeffrey Thompson, James Craver, and Markus Persson Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 742407 CrashCourse
Darwin's Principles
Darwin's Principles
Views: 261 Alaina Garza
Sex ratio theory: Fisher's principle & its deviations
by Isabel Madley (Vassar College, spring 2012) ---------------Literature Cited-------------- Charnov, E. L., Los-den Hartogh, R. L., Jones, W. T., and Van den Assem, J. (1981). Sex ratio evolution in a variable environment. Nature 289(5793): 27-33. Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1985). Parental investment and sex differences in juvenile mortality in birds and mammals. Nature 313: 131-133. Clutton-Brock, T. H., Albon, S. D., and Guinness, F. E. (1986). Great expectations: dominance, breeding success and offspring sex ratios in red deer. Animal Behavior 34: 460-471. Ellegren, H., Gustafsson, L, and Sheldon, B. C. (1996). Sex ratio adjustment in relation to paternal attractiveness in a wild bird population. Proceedings of the National Academy of Sciences 93(21): 11723-11728. Fisher, Ronald Aylmer (1958). The genetical theory of natural selection. New York: Dover. Griffin, A. S., Sheldon, B. C., and West, S. A. (2005). Cooperative breeders adjust offspring sex ratios to produce helpful helpers. The American Naturalist 166(5): 628-632. Hamilton, W. D. (1967). Extraordinary sex ratios. Science 156(3774): 477-488. Klinkhamer, P. G., & Jong, T. d. (2002). Sex allocation in hermaphrodite plants. Sex ratios: concepts and research methods (pp. 333-348). Cambridge, U.K.: Cambridge University Press. Martin, J. G. A. and Festa-Bianchet, M. (2011). Sex ratio bias and reproductive strategies: What sex to produce when? Ecology 92(2): 441-449. Mocarelli, P. ... and Needham, L. L. (2000). Paternal concentrations of dioxin and sex ratio of offspring. The Lancet 355 (9218): 1858-1863. Spotila, J. R., Standora, E. A., Morreale, S. J., and Ruiz, G. J. (1987). Temperature dependent sex determination in the green turtle (Chelonia mydas): Effects on the sex ratio on a natural nesting beach. Herpetologica 43(1): 74-81. Trivers, R. L. and Willard, D. E. (1973). Natural selection of parental ability to vary the sex ratio of offspring. Science 179: 90-92. Werren, J. H. (1980). Sex ratio adaptations to local mate competition in a parasitic wasp. Science 208(4448): 1157-1159. West, S. A. (2009). Sex allocation. Princeton: Princeton University Press.
Views: 15394 hpdrama
Theory of Natural Selection or Darwinism | In HINDI
Concept Tutorial explains ‘Theory of Natural selection or Darwinism' in the simplest student friendly language and in HINDI. The video will help a lot scoring high in Std 12 board exam and Pre Medical Tests. If you find our videos and our content a great help, guidance and support, kindly donate generously by following the “Paytm” link given below. http://p-y.tm/zU5pf6Ms We invest hours in writing, editing, producing, publishing and managing “Concept Tutorial” YouTube Channel. We use these donations to meet our costs. Our channel offers knowledge, authentic and original student friendly content and detailed information to our audience. Thank you! Find answers to question asked in the video: Answer 1: No, human evolution did not lead to formation of more than one species. Answer 2: Mutation Answer 3: J shaped exponential graph Contents of the video: Charles Darwin & Galapagos Islands- 0:20 Location of Galapagos Islands in Pacific Ocean- 1:04 Darwin’s Finches- 1:25 Thomus Malthus’ Principles of Population- 3:52 Summary of Natural Selection- 9: 37 Evolution of pesticide resistant insects- 10:43 Evolution by anthropogenic actions- 12:40 Criticism of natural selection theory- 14:27 You might find following topics useful: Hardy Weinberg Principle & Genetic drift: https://youtu.be/AKSdi2pMcow Types of Natural Selection: https://youtu.be/-hhpBGB2dMU Chemical & Biological Evolution: https://youtu.be/0OSkcjRUGCw Share this Video: https://youtu.be/nkXakUBAk64 Visit our website: http://www.concepttutorial.in/
Views: 21379 Concept Tutorial
Population Genetics: When Darwin Met Mendel - Crash Course Biology #18
Hank talks about population genetics, which helps to explain the evolution of populations over time by combing the principles of Mendel and Darwin, and by means of the Hardy-Weinberg equation. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter: http://www.twitter.com/TheCrashCourse References for this episode can be found in the Google document here: http://dft.ba/-2HbN Table of Contents: 1. Population Genetics 1:05 2. Population 1:14 3. Allele Frequency 1:41 4. 5 Factors 1:58 a) Natural Selection 2:12 b) Natural Selection/Random Mating 2:27 c) Mutation 3:18 d) Genetic Drift 3:49 e) Gene Flow 4:05 5. Hardy-Weinberg Principle 4:45 6. Hardy-Weinberg Equilibrium 5:15 7. Hardy-Weinberg Equation 6:18 gregor mendel, heredity, genetics, charles darwin, natural selection, evolution, offspring, population genetics, species, population, generation, allele frequency, allele, selective pressure, sexual selection, non-random mating, preferred traits, fitness, mutation, DNA, genetic drift, chance, gene flow, immigration, emigration, godfrey hardy, wilhelm weinberg, hardy-weinberg equation, hardy-weinberg equilibrium, phenotype, genotype, earwax, mendelian trait, homozygous, heterozygous, evolutionary biology This video contains the following sound from Freesound.org: "LucasGonze-HomestyleMandolin-17.aiff" by lucasgonze Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 974620 CrashCourse
Charles Lyell - The Evolution of Evolution | David Rives
SUBSCRIBE (above) for new inspirational videos! LIKE David’s FB page here: http://www.facebook.com/DavidRivesMinistries FOLLOW us on Twitter: http://twitter.com/TheDavidRives VISIT our official website for tons of free information: http://www.davidrivesministries.org David Rives MUSIC: http://www.davidrivesmusic.com For the TBN show “Creation in the 21st Century”: http://www.creationinthe21stcentury.com David Rives is the host of "Creation in the 21st Century" on TBN, singer/songwriter, and author of the book "Wonders Without Number". Browse through our YouTube channel to be educated, entertained, and inspired - and don't forget to subscribe for new videos. Charles Lyell was a British lawyer and geologist who lived during the nineteenth century. He published a three-volume work called Principles of Geology, which promoted his ideas of an old earth, geologic ages, and uniformitarianism. This is the belief that the present is the key to the past. He believed that the slow and gradual processes we see today are the same processes that shaped our planet’s geology over millions of years. Lyell outright rejected the Bible as God’s Word and rejected it as an accurate account of earth’s history. He actually wrote that he wanted to “free the science of geology from Moses.” Lyell was probably best described as a deist. He believed in a distant God who did not intervene in the Universe. Without a God, everything had to be explained naturally, and uniformitarianism gave Lyell a way to explain what we see in the world without appealing to God or His revelation to us in the Bible. Lyell soon gained a young admirer—the naturalist Charles Darwin. While on board the Beagle, the ship that took him around the world, Darwin had copies of Lyell’s books and he says he “studied [them] attentively” and that they were “of the highest service to [him] in many ways.” Darwin didn’t invent his evolutionary ideas as he unbiasedly pursued the truth. He had become convinced of the same philosophical beliefs as Lyell. He believed in deism and uniformitarianism so evolutionary ideas about life were a natural progression of his philosophy. It wasn’t his observations of the natural world that convinced him evolutionary ideas had to be the true history of life. It was his rejection of God and His Word, and his acceptance of uniformitarianism, that led to his evolutionary ideas. More and more geologists are realizing that the present is not the key to the past. The evidence doesn’t support the idea that slow and gradual processes are responsible for what we see in the rocks. Charles Lyell was wrong! This was simply one more chapter in the history of evolution’s rise to popularity. I call it: “The Evolution of Evolution.” These archaic philosophies have seen far too many pseudoscientific complications added - in an effort to salvage the theory. It’s about time for a fresh approach. I’m David Rives. Truly…the heavens declare the glory of God.
Microevolution - Macroevolution
Watch more videos on http://www.brightstorm.com/science/biology SUBSCRIBE FOR All OUR VIDEOS! https://www.youtube.com/subscription_center?add_user=brightstorm2 VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES! http://www.brightstorm.com/ LET'S CONNECT! Facebook ► https://www.facebook.com/brightstorm Pinterest ► https://www.pinterest.com/brightstorm/ Google+ ► https://plus.google.com/+brightstorm/ Twitter ► https://twitter.com/brightstorm_ Brightstorm website ► https://www.brightstorm.com/
Views: 45153 Brightstorm
4. Neutral Evolution: Genetic Drift
Principles of Evolution, Ecology and Behavior (EEB 122) Neutral evolution occurs when genes do not experience natural selection because they have no effect on reproductive success. Neutrality arises when mutations in an organism's genotype cause no change in its phenotype, or when changes in the genotype bring about changes in the phenotype that do not affect reproductive success. Because neutral genes do not change in any particular direction over time and simply "drift," thanks in part to the randomness of meiosis, they can be used as a sort of molecular clock to determine common ancestors or places in the phylogenetic tree of life. 00:00 - Chapter 1. Introduction 04:56 - Chapter 2. Genes and Amino Acid Changes Not Reflected in Phenotypes 14:29 - Chapter 3. Neutral Evolution in the History of Life 20:38 - Chapter 4. Mechanisms of Neutral or Random Evolution 35:28 - Chapter 5. The Molecular Clock of Neutral Evolution Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses This course was recorded in Spring 2009.
Views: 38501 YaleCourses
Classical Management Theory
Classical Management Theory, broadly speaking, is based upon Henri Fayol, Frederick Taylor, and Max Weber's overlapping management theories. These three management theories came together to form what we generally refer to nowadays as Classical Management Theory. Virtually all areas of organizational studies from management, to business, to organizational communication put these three theorists at the foundation of most modern day organizations for developing theories of 1) Administrative science, 2) Scientific Management, and 3) Bureaucracy. Taken together, they form the basis for how we organizational structures and relationships between managers and employes. https://www.amazon.com/gp/product/1433131234/ref=as_li_tl?ie=UTF8&tag=alexlyon-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=1433131234&linkId=6bfd9c333c786d16025c5a7c70a3ef4c The Organizational Communication Channel provides supplemental lessons for traditional, hybrid, and 100% online courses for students and teachers everywhere. My Current Camera Gear (Affiliate Links): Camera Rebel T5i https://www.amazon.com/gp/product/B00BW6LWO4/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=alexlyon-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B00BW6LWO4&linkId=504e12f13100f143d4df4e79731f206a Lens Canon 50mm: https://www.amazon.com/gp/product/B00X8MRBCW/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=alexlyon-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B00X8MRBCW&linkId=b0bfb7ea7439df39e744bfd303c53fee USB Microphone Blue Yeti: https://www.amazon.com/gp/product/B002VA464S/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=alexlyon-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B002VA464S&linkId=a9d8b41ead5eb30f69342be95d3a3d22 Lavalier Microphone Rode Smartlav+: https://www.amazon.com/gp/product/B00EO4A7L0/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=alexlyon-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B00EO4A7L0&linkId=c29c80d531374d347f8a78498b34d05d Audio Recorder: Tascam DR-05: https://www.amazon.com/gp/product/B004OU2IQG/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=alexlyon-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B004OU2IQG&linkId=578b149b5807f2ec0f7f16c18e1c34f4
What is Natural Selection?
Support Stated Clearly on Patreon: https://www.patreon.com/statedclearly Special thanks to Rosemary at Bird and Moon Comics for supplying a handful of the critter illustrations: http://www.birdandmoon.com/ Special thanks to AD for the music! http://www.proofavenue.com/ Natural Selection is one of the main concepts found within the theory of evolution. It was discovered by Charles Darwin and Alfred Russel Wallace though Darwin championed the idea in his book "On the Origin of Species". Natural selection can be defined as the process by which random evolutionary changes are selected for by nature in a consistent, orderly, non-random way. When coupled with descent with modification, Natural Selection can cause a population to evolve for fitness within a given environment over multiple generations. Natural Selection is an observable fact. By carefully observing populations of living things with short life cycles you can actually watch it happen. Want to learn more? Check out our notes for this video. Included are links to three examples of natural selection witnessed by researchers. There are many more as well. http://www.statedclearly.com/notes-for-the-natural-selection-video/ This project was funded by contributions from our viewers and from Brain-Tools LLC. Check out Brain Tools' new Alzheimer's treatment here: https://brain-tools.com/ See a Stated Clearly video we did for Brain Tools LLC here: http://youtu.be/rZ_n5X4MMGw
Views: 1405347 Stated Clearly
Evolution and natural selection | Biomolecules | MCAT | Khan Academy
Learn the fundamental principles about how natural selection can drive the process of evolution. By Ross Firestone. Created by Ross Firestone. Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/biomolecules/evolution-population-dynmaics/v/fitness-and-fecundity?utm_source=YT&utm_medium=Desc&utm_campaign=mcat Missed the previous lesson? https://www.khanacademy.org/test-prep/mcat/biomolecules/chromosomal-inheritance/v/extranuclear-inheritance-2?utm_source=YT&utm_medium=Desc&utm_campaign=mcat MCAT on Khan Academy: Go ahead and practice some passage-based questions! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s MCAT channel: https://www.youtube.com/channel/UCDkK5wqSuwDlJ3_nl3rgdiQ?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 69569 khanacademymedicine
The Power of Motivation: Crash Course Psychology #17
You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content. Feeling motivated? Even if you are, do you know why? The story of Aaron Ralston can tell us a lot about motivation. In this episode of Crash Course Psychology, Hank tells us Ralston's story, as well as 4 theories of motivation and some evolutionary perspectives on motivation. -- Table of Contents Four Theories of Motivation: Evolutionary Perspective 1:38:22 Drive-Reduction 2:45:10 Optimal Arousal 3:38:21 Maslow's Hierarchy of Needs 4:49:04 How Sex, Hunger, and the Need to Belong Motivate us 5:29:02 -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1590824 CrashCourse
What’s the difference between a scientific law and theory? - Matt Anticole
View full lesson: http://ed.ted.com/lessons/what-s-the-difference-between-a-scientific-law-and-theory-matt-anticole Chat with a friend about an established scientific theory, and she might reply, “Well, that’s just a theory.” But a conversation about an established scientific law rarely ends with “Well, that’s just a law.” Why is that? What is the difference between a theory and a law... and is one “better”? Matt Anticole shows why science needs both laws and theories to understand the whole picture. Lesson by Matt Anticole, animation by Zedem Media.
Views: 607163 TED-Ed
Using Evolutionary Principles to Design Optimal Landscapes and Decors (THE SAAD TRUTH_276)
I discuss how prospect-refuge theory and biophilia could be used in designing maximally attractive spaces (e.g., cafes, neighbourhoods, school yards, and hospital rooms). ____________________________________________ Support this channel via Patreon: https://www.patreon.com/GadSaad Support this channel via PayPal: https://www.paypal.me/GadSaad Like my Facebook page: https://www.facebook.com/Dr.Gad.Saad Follow me on Twitter: https://twitter.com/GadSaad (@GadSaad) Psychology Today blog: https://www.psychologytoday.com/blog/homo-consumericus ____________________________________________ Images stem from a variety of Google sources (as originally noted) albeit now some return broken links. Fair Use (of images): https://www.law.cornell.edu/uscode/text/17/107
Views: 4307 Gad Saad
33. Evolutionary Game Theory: Fighting and Contests
Principles of Evolution, Ecology and Behavior (EEB 122) The economic concept of game theory can be readily applied to evolution and behavior. By analyzing encounters between organisms as a mathematical "game," important information such as fitness payoffs and the proportions of "strategies" played by each group within a population can be inferred. While oftentimes these games are too simplified to apply directly to actual examples in nature, they are still useful models that help convey important concepts. 00:00 - Chapter 1. Introduction 03:58 - Chapter 2. Background to Game Theory 09:49 - Chapter 3. The Hawk-Dove Game 21:43 - Chapter 4. The Prisoner's Dilemma 29:18 - Chapter 5. Contextual Biological Examples 40:48 - Chapter 6. Conclusion Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses This course was recorded in Spring 2009.
Views: 20012 YaleCourses
Understanding Modern Evolution Facts - Part 1 of 6 (Basic Principles, Phylogenetic Tree of Life)
Understanding Modern Evolution Facts - Part 1 of 6 (Basic Principles, Phylogenetic Tree of Life) http://www.youtube.com/watch?v=sQbryPyknuA Understanding Modern Evolution Facts - Part 2 of 6 (Transitional, Parallel Existence, Sequencing) http://www.youtube.com/watch?v=T1KCOBFEKh4 Understanding Modern Evolution Facts - Part 3 of 6 (Extinction, Interbreeding, Speciation) http://www.youtube.com/watch?v=YYEa4ZYU07I Understanding Modern Evolution Facts - Part 4 of 6 (The Rate of Evolution) http://www.youtube.com/watch?v=pq-9TX1Ajlg Understanding Modern Evolution Facts - Part 5 of 6 (Genome, Genetic Sequencing) http://www.youtube.com/watch?v=azVlx-2vsVU Understanding Modern Evolution Facts - Part 6 of 6 (Retro-Viral Gene Insertion ERV Sequence) http://www.youtube.com/watch?v=8xnuHaeT0iE What is Science? Science is testable based on evidence. Testable meaning it can be proven wrong through experimentation. Evolution is both a Fact and Theory, it is a Fact that Evolution exist. Evolution is also a Theory, in that many details of the mechanisms of Evolution is progressing. Just like Gravity is a Fact and exist, yet there is no unifying Theory of Gravity, which is also constantly progressing. That is science many many Hypothesis that are proven wrong which do not contribute to the Theory, and many that Advance and further Validate the Theory. Science is Testable. Time context of Evolution - Keep in mind that Humans have a hard time putting into context time in spans more than their lifetime or more even a mere million years. An analogy to Evolution is that of a baby, growing to a toddler, to an pre-teen to a teenager to an adult. As the transition is happening few would argue that the baby, toddler and adult is the same person. But taking snap shots in discrete time, it is almost unfathomable to the human brain that a baby can possibly transform into an adult. Human senses and perception is limited.
Views: 4204 TheAsianRepublican
1. The Nature of Evolution: Selection, Inheritance, and History
Principles of Evolution, Ecology and Behavior (EEB 122) The lecture presents an overview of evolutionary biology and its two major components, microevolution and macroevolution. The idea of evolution goes back before Darwin, although Darwin thought of natural selection. Evolution is driven by natural selection, the correlation between organism traits and reproductive success, as well as random drift. The history of life goes back approximately 3.7 billion years to a common ancestor, and is marked with key events that affect all life. 00:00 - Chapter 1. Introduction 03:22 - Chapter 2. History of Evolutionary Studies 15:59 - Chapter 3. Conditions for Natural Selection 21:25 - Chapter 4. The Power of Selection and Adaptation 27:09 - Chapter 5. Drift 31:10 - Chapter 6. History of Life 39:33 - Chapter 7. Conclusion Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses This course was recorded in Spring 2009.
Views: 149865 YaleCourses
The religious angle to evolutionary theory
The religious angle to evolutionary theory SHOULD CHARLES Darwin's evolutionary theory still be the reigning philosophy of biological science and the general understanding of our origin? Many think not. From a secular point of view, thoughtful students of anthropology and palaeontology have serious doubts about Darwin's 1859 writings on evolution. Further, 80 per cent of Americans today think that Darwin's theory is not the only explanation of our beginnings and that creationism should be taught in that country's public schools. These findings were the result of a year-2000 US poll. There are scientists who remind us that the missing link has never been discovered, and that after nearly a century and a half of natural selection, no one has produced hard evidence of one species transforming into another. Moreover, in his classic 700 page book, Forbidden Archeology, Michael Cremo catalogues discoveries of hundreds of tools, arti- facts and human remains. These findings were situated in strata dated with current scientific methods at over a million years old, indirectly corroborating truths in the Puranas. The Padnia Purana lists the numbers of aquatics, plants, insects, birds, beasts, and humans at 8.4 million. Today's jury of anthropologists believe that two million species have been named to date, and that there are up to 30,000,000 more to be discovered and categorised. If God is accepted as omnipresent, omniscient, all loving and omnipotent, it follows that God can and does intervene in human affairs, hears prayers, has a relationship with us, and creates universes in all their diversity of life forms. Moreover, a series of moral principles such as cleanliness, kindness, courage, compassion, austerity and truth, accompanies any full knowledge of God. Conversely, and significantly, many influential thinkers embraced Darwinism because it made no moral judgments, leaving all developments to chance and random occurrences. Scriptures in most religions confirms that every species was created by God and has existed since time immemorial. Theories based on Darwin, which embrace survival of the fittest and amorality, are intellectually and spiritually restrictive, and cannot co-exist rationally with full knowledge of God. How did we get here, and why do we exist? Darwinian theory cannot retain such a monolithic and quasi-religious status in the scientific market place. The Puranic and Vedic writings detail, our origins and purpose and deserve at least as much attention from scientists worldwide. #laxmi
Views: 402 ISKCON Desire Tree
Origin of Life - Evolution - Dr. Rajeev Ranjan | NEET & AIIMS | Video Lectures
BUY to Enroll in FULL NEETPrep Online Video Course. Call or Whatsapp at 8527521718. NEETPrep Online Video course contains 500+ hours of videos covering all 97 chapters(PCB) in NEET Syllabus. Enroll today to SMARTLY prepare for NEET Exam.
Views: 114073 NEETprep
Natural Selection
Discover natural selection as a mechanism of evolution with the Amoeba Sisters. This video also uncovers the relationship of natural selection and antibiotic resistance in bacteria and emphasizes biological fitness. This video has a handout here: http://www.amoebasisters.com/handouts.html Note: This video is focused on natural selection. When we briefly mention evolution as 'change over time', this IS a bit too much of a simplification. We eventually hope to make a video specifically on evolution itself. Support us on Patreon! http://www.patreon.com/amoebasisters Our FREE resources: GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSister­s Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store.html The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language. Music is this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog We have YouTube's community contributed subtitles feature on to allow translations for different languages. YouTube automatically credits the different language contributors below (unless the contributor had opted out of being credited). We are thankful for those that contribute different languages. If you have a concern about community contributed contributions, please contact us.
Views: 377459 Amoeba Sisters
Intelligent Design 1.7   Darwin Evolution Theory
Natural selection has a simple concept that is being in a state of 'adaptation'. 'Adaptation' is the key principle in creating evolution. It is often misconstrued to be an explanation to the origin of life itself because it is still yet to be proven. Other factors to that principle would be like 'chance' and 'fitness' that makes a lot of difference in various organisms when it comes to the capacities to survive and reproduce in an environment. 'Adaptation' in itself is alterations that can make a difference to any process and along with results - as selection would be acting on heritable variation. Because any modifications from the adaptation becomes an inherent trait that is passed either in genetic forms or memory cell through generations and along with the evolutionary consequences from it. Also in the 'Theory of Evolution' would always require reproducing the entities that form continuity - that may require mutation or variant of itself to satisfy 'adaption' - if the environment requires the 'fitness' factor. To satisfy the condition to happen would need an environment, that is either forced or accidental for it to eventuate, therefore making the right conditions for the three principle forces to occur hence the 'chance'. So, all three factors in Darwinian concept of 'natural selection' base on the 'theory of evolution' are important components to the existence of life and all at the same time would intertwine as it occur. Therefore, what 'natural selection' under the 'theory of evolution' does demonstrate then is the mechanistic process of the existence from adaptations to have evolved in nature and towards the creation of new species and its inherent variants. Cheers
Views: 2474 aussiETau
Evidence of Evolution:
Paul Andersen describes pieces of evidence that Charles Darwin used to support the idea of evolution and his process of natural selection. He begins with the following evidence use in the Origin of Species; artificial selection, biogeography, fossils and homologies. He finishes with a discussion of DNA and how it can be used to unravel the evolution of life on our planet. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ All of the images are licensed under creative commons and public domain licensing: "3T3 Cells." Wikipedia, the Free Encyclopedia, July 23, 2013. http://en.wikipedia.org/w/index.php?title=3T3_cells&oldid=565489857. "File:Chathamensis.jpg." Wikipedia, the Free Encyclopedia. Accessed November 1, 2013. http://en.wikipedia.org/wiki/File:Chathamensis.jpg. File:Darwin-s-tubercle.jpg, n.d. http://commons.wikimedia.org/wiki/File:Darwin-s-tubercle.jpg. "File:Galapagos-satellite-esislandnames.jpg." Wikipedia, the Free Encyclopedia. Accessed October 31, 2013. http://en.wikipedia.org/wiki/File:Galapagos-satellite-esislandnames.jpg. "File:GNigrita.jpg." Wikipedia, the Free Encyclopedia. Accessed November 1, 2013. http://en.wikipedia.org/wiki/File:GNigrita.jpg. "File:Homology Vertebrates.svg." Wikipedia, the Free Encyclopedia. Accessed October 31, 2013. http://en.wikipedia.org/wiki/File:Homology_vertebrates.svg. "File:Orthographic Projection Centred over the Galapagos.png." Wikipedia, the Free Encyclopedia. Accessed November 1, 2013. http://en.wikipedia.org/wiki/File:Orthographic_projection_centred_over_the_Galapagos.png. Konversionlexikon, Meyers. Deutsch: Skelett Eines Bartwales (a - Schulterblatt, b - Vorderbein, c - Rest Des Hinterbeins), 1988. Meyers Konversionlexikon 1888. http://commons.wikimedia.org/wiki/File:Whale_skeleton.png. Lilyu. Friendly Stickmen, December 17, 2008. Own work. http://commons.wikimedia.org/wiki/File:Friendly_stickman.svg. publisher, Bain News Service. Charles Darwin. 1 Negative : Glass ; 5 x 7 in. or Smaller. From a Photograph by Elliott & Fry. According to Gene Kritsky, Maintainer of an Archive of Darwin Photographs, This Was from a Photography Session at Darwin's Home, Down House, and on Another Photograph from That Session Darwin Wrote "1879" on the Back. It Was Later Widely Sold and Distributed on Heavy Card Stock by Elliott & Fry, with a Caption Dating It "Circa 1880". It Was Later Reproduced in a Wide Range of Darwiniana., 1879. Library of Congress[1]. http://commons.wikimedia.org/wiki/File:Darwin_restored2.jpg. version, Original uploader was Mcy jerry at en wikipedia Later. English: en:Evolution of En:horse, February 5, 2006. Transferred from en.wikipedia. http://commons.wikimedia.org/wiki/File:Horseevolution.png. Weston, Mike. Lonesome George, December 10, 2006. Flickr: Lonesome George 2. http://commons.wikimedia.org/wiki/File:Lonesome_George_in_profile.jpg. Yourdon, Ed. Little Girl Whispering Something in a Woman's Ear., July 18, 2009. originally posted to Flickr as Let me tell you a secret. http://commons.wikimedia.org/wiki/File:Let_me_tell_you_a_secret.jpg. Zell, H. Deutsch: Evolution Der Pferde. Zusammengestellt Aus Skeletten Des Staatlichen Museums Für Naturkunde Karlsruhe, Deutschland., September 29, 2010. Own work. http://commons.wikimedia.org/wiki/File:Equine_evolution.jpg. Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
Views: 252279 Bozeman Science
MIA: Martin Nowak, Evolutionary Dynamics
April 25th, 2018 MIA Meeting: https://youtu.be/PuECCmT1Ioo Martin Nowak Director, Program for Evolutionary Dynamics, Harvard University Evolutionary Dynamics Abstract: Biological evolution describes how populations of individuals change over time. The three fundamental principles of evolution are mutation, selection and cooperation. I will present the mathematical formalism of evolution focussing on stochastic processes. I will discuss amplifiers and suppressors of natural selection, evolutionary game theory and evolutionary graph theory. For more information on the Broad Institute and Models, Inference and Algorithms visit: https://www.broadinstitute.org/mia Copyright Broad Institute, 2018. All rights reserved.
Views: 992 Broad Institute
13. Sexual Selection
Principles of Evolution, Ecology and Behavior (EEB 122) Sexual selection is a component of natural selection in which mating success is traded for survival. Natural selection is not necessarily survival of the fittest, but reproduction of the fittest. Sexual dimorphism is a product of sexual selection. In intersexual selection, a sex chooses a mate. In intrasexual selection, individuals of one sex compete among themselves for access to mates. Often honest, costly signals are used to help the sex that chooses make decisions. 00:00 - Chapter 1. Introduction 06:53 - Chapter 2. Competing and Choosing 13:11 - Chapter 3. Competition with Sexual Dimorphism 27:29 - Chapter 4. Honest, Costly Signaling 35:55 - Chapter 5. Selection through Perception and Polyandry 43:35 - Chapter 6. Summary Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses This course was recorded in Spring 2009.
Views: 36390 YaleCourses
Intro to Psychology - Crash Course Psychology #1
You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content. What does Psychology mean? Where does it come from? Hank gives you a 10 minute intro to one of the more tricky sciences and talks about some of the big names in the development of the field. Welcome to Crash Course Psychology!!! -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 7047970 CrashCourse
The Principle Of Evolution Is In Creation - Pastor Sunday
The Principle Of Evolution Is In Creation - Pastor Sunday The core of the church is its ministry. Just like the early church ministered to the poor, the widows, and to each other, no church can be planted successfully grown without a strong foundation in ministry. So...How do you minister to the youth? How should you help and minister to the poor? And how specifically should the church function? Should it be taxed? Should the poor tithe? Should church musicians be paid? Is tithing even in the new testament? Is it the Church pushing people like Muhammad Ali away from Christianity? Is the Church still relevant at this point? Of course it is, but it still needs revival and reformation, so learn about reformation in the church and how to bring revival to yours with Pastor Sunday! To watch all series of broadcasts Church Reformation - Pastor Sunday please follow https://www.youtube.com/playlist?list=PLHEIgEAIukjh9a3IaLbPa292wiP5AnTB0 You may also listen to a podcast here _________________________________________________________ MORE USEFUL LINKS: Listen & download Free 🔊 https://soundcloud.com/drsundayadelaja Download Free 📲 https://t.me/drsundayadelaja Watch 🎥 https://www.youtube.com/sundayadelajaofficial Stay up-to-date 🔔 https://twitter.com/official_pastor Follow 👣 https://www.instagram.com/sunday_adelaja Read 📰 http://sundayadelajablog.com Like 👍 https://www.facebook.com/Drsundayadelaja Zip files 📚 of all series instantly downloadable: https://fex.net/#!625447785606
Is Natural Selection A Theory Or A Law?
Reed (1981) argues that natural selection, far from being either a contingent fact or an empty tautology, is a genuine law of nature. The status of a law does not seem fitting for the fundamental principle of Darwinian evolutionary theory, if evolutionary theory is to stand as an independent scientific theory. Natural selection, law or theory? Evolution as fact and theory wikipedia. A scientific law is a pattern. It is far from clear that evolution a law in the sense of newton's laws or kepler's boyle's snell's reed (1981) argues natural selection, being either contingent fact an empty tautology, genuine nature. Darwins law of evolution genuine ideas. The status of a law does not seem fitting for the fundamental principle darwinian evolutionary theory, if theory is to stand as an independent scientific explanation. Also, darwin's discoveries go against aristotle's theories of causation, which work well for human artifacts nov 24, 2009 laws and experiments are inappropriate techniques the explication such theory evolution by natural selection explains aug 30, 2017 scientific explain phenomena in very most important is selection, continually sifts. Darwin's law of natural selection and thom's theory catastrophes 3 ways to explain the difference between theory, law, a factprocess science darwin's evolution definition & evidence live. It's one of the most solid theories in science. Darwin's influence on modern thought scientific american. That the sun appears to rise every many scientists and philosophers of science have described evolution as fact theory, natural selection is only one several mechanisms in theory some aspect world that can incorporate facts, laws, inferences, because it's an explanatory framework. Googleusercontent search. Why is natural selection called a theory? Quora. Should evolution be a law rather than theory? Is natural selection still Ask the atheists. Is natural selection a law or theory? it law? No, it's fact. Feb 9, 2016 natural selection is a key concept within darwinian evolution and considered 'theory' nov 30, 2015 some scientists speak of the fact evolution, as distinct from darwin's hypothesis its mechanism (natural selection). Darwin's law of natural selection implies that a population in for example, the scientific theory corresponds with evolution. Natural selection as a law principles and processes jstor. Socratic socratic questions is natural selection a law or theory class "" url? Q webcache. A scientific law is a simple mathematical framework, the sort of thing you can express with an equation darwin's evolution by natural selection (traditionally referred to as 'theory' honor original treatise, but now confirmed through observation apr 23, 2013 not, i should reiterate, just doubting that theory explains evolution; Instead itself occurred, dec 31, 2010 what whether mechanism and refer them laws facts among general public, since they jun 7, 2008 provided first, newton's 1 st law, similarly one cannot understand
Darwinian Machine Learning: Principles of Machine Learning in Evo-devo, Evo-eco and Evolutionary...
Richard Watson, University of Southampton Computational Theories of Evolution http://simons.berkeley.edu/talks/richard-watson-2014-03-21
Views: 954 Simons Institute
Solving Hardy Weinberg Problems
Paul Andersen shows you how to solve simple Hardy-Weinberg problems. He starts with a brief description of a gene pool and shows you how the formula is derived. He then shows you how to solve a couple of sample problems. Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
Views: 857390 Bozeman Science
The Hardy-Weinberg Principle:  Watch your Ps and Qs
The Hardy-Weinberg Principle states that allele and genotype frequencies in populations remain stable over time, given certain assumptions. What assumptions? What does the principle mean? And how do you SOLVE those Hardy-Weinberg PROBLEMS? Everything shall be revealed in this video - with some penguins of course. They make everything go down easier. JOIN THE FUN all over the WEB: SUBSCRIBE: http://www.youtube.com/user/ThePenguinProf FACEBOOK: https://www.facebook.com/ThePenguinProf GOOGLE+: https://plus.google.com/+Penguinprof/posts TWITTER: https://twitter.com/penguinprof WEB: http://www.penguinprof.com/ Links to Videos Mentioned: Mendelian Genetics: http://youtu.be/xtJwHytHRfI How to Solve Genetics Problems: http://youtu.be/Qcmdb25Rnyo Solution for the additional problem I showed at the end: Allele Frequencies: q = 0.04 p = 0.96 Genotype Frequencies: homozygous dominant: 0.92 Heterozygous: 0.08 Homozygous recessive: 0.002 Answer to the additional problem step-by-step: http://www.penguinprof.com/uploads/8/4/3/1/8431323/solving_hardy-weinberg_problems.pdf ------------------------------------------------------------------------------------------ Video Details: Population Genetics: The Hardy-Weinberg Principle You need to know: gene vs. allele gentoype vs. phenotype understanding probabilities (and vs. or) Punnett Square Hardy-Weinberg Principle Timeline of Discoveries Darwin, Mendel, DeVries, Correns Hardy, Weinberg, Castle Mendelian Genetics Gets HOT Particles are inherited! Traits aren't blended! Cambridge opens a department of Genetics So What's it All About? It's about frequencies When talking about population genetics, we are interested in the prevalence of a particular allele or genotype in a population The Hardy-Weinberg Principle States: Frequencies of alleles and genotypes in a population will remain constant over time in the absence of other evolutionary influences Assumptions Organisms are diploid Generations are non-overlapping Population must be large No immigration or emigration No mutation in the gene of interest No natural selection occurs (individuals reproduce at equal rates) Mating is random Alleles and Allele Frequency Penguin Prof Helpful Hints The Sum of All Possible Outcomes MUST Equal 1 p+q = 1 ALLELE FREQUENCY 2 Alleles = Genotype p2 + 2pq + p2 = 1 What if There are Three Alleles? (p, q and r) Sample Problem In a population of 1,000 penguins, 12 have blue feet. Find the frequency of the blue allele, the yellow allele and the frequencies of the three possible genotypes in this population. Solving Hardy-Weinberg Problems Assign the alleles Frequency of the dominant allele is 'p' Frequency of the recessive allele is 'q' Calculate q by taking the square root of the number of homozygous recessive individuals Calculate p (the allele frequencies must equal 1, so p = 1 − q) Use p and q to calculate the other genotype frequencies: frequency of homozygous dominant individuals = p2 frequency of heterozygous individuals = 2pq frequency of homozygous recessives = q2 This may help: Hardy-Weinberg Punnett Square Try Another One... In a population of 130,000 magical mice, green fur is dominant over orange. If there are 300 orange mice in a population of 130,000, find the following (assume population is in Hardy-Weinberg equilibrium): 1. Frequency of dominant (green) allele 2. Frequency of recessive (orange) allele 3. Frequency of each genotype
Views: 289915 ThePenguinProf
Theory of Origin of State
This Lecture talks about Theory of Origin of State
Views: 21338 Cec Ugc