Search results “For principles of natural selection”
12.2.2 Darwin's Principles of Natural Selection
Views: 8865 braingenie
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: 1733810 CrashCourse
Principles of Natural Selection
Charles Darwin and variation, heritability, overpopulation, and reproductive advantage
Views: 1276 Shellie Kerrigan
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: 390853 Chris Mochinski
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: 1359137 Stated Clearly
The Five Parts of Natural Selection
A short explanation of the principle of Natural Selection
Views: 3257 kbanisky
Natural Selection - Peppered Moth
Link to game http://peppermoths.weebly.com/ Answer Questions in complete sentences 1. What color was better for the moths at the beginning? 2. What caused the color of the trees to change? 3. What happened to the white moths after the tree color became darker? 4. EXPLAIN the 4 Principles of Inheritance.
Views: 45814 Takata Science
The Four Factors of Evolution: Natural Selection
Created using mysimpleshow – Sign up at http://www.mysimpleshow.com and create your own simpleshow video for free.
Views: 359 mysimpleshow
Principles of Natural Selection
For high school biology
Views: 825 sarah schlussel
Principles of Natural Selection
For honors biology
Views: 461 sarah schlussel
Natural Selection Animation
Meet Lithipodius nulla, a simple creature with a tendency to reproduce offspring. Lots of offspring.
Views: 18117 IMPSatCDU
Four Governing Principles of Natural Selection
Four Governing Principles of Natural Selection
Views: 211 CK-12 Foundation
The 4 Steps of Natural Selection
Some of the images in this video are not my original images. I do not claim them to be my own.
Views: 3032 Jen Solomon
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: 348079 Amoeba Sisters
Evolution part 1, introduction to natural selection
For more information, log on to- http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html Evolution is the change in the inherited characteristics of biological populations over successive generations. Evolutionary processes give rise to diversity at every level of biological organisation, including species, individual organisms and molecules such as DNA and proteins.[1] All life on Earth is descended from a last universal ancestor that lived approximately 3.8 billion years ago. Repeated speciation and the divergence of life can be inferred from shared sets of biochemical and morphological traits, or by shared DNA sequences.[2] These homologous traits and sequences are more similar among species that share a more recent common ancestor, and can be used to reconstruct evolutionary histories, using both existing species and the fossil record. Existing patterns of biodiversity have been shaped both by speciation and by extinction.[3] Charles Darwin was the first to formulate a scientific argument for the theory of evolution by means of natural selection. Evolution by natural selection is a process that is inferred from three facts about populations: 1) more offspring are produced than can possibly survive, 2) traits vary among individuals, leading to different rates of survival and reproduction, and 3) trait differences are heritable.[4] Thus, when members of a population die they are replaced by the progeny of parents that were better adapted to survive and reproduce in the environment in which natural selection took place. This process creates and preserves traits that are seemingly fitted for the functional roles they perform.[5] Natural selection is the only known cause of adaptation, but not the only known cause of evolution. Other, nonadaptive causes of evolution include mutation and genetic drift.[6] In the early 20th century, genetics was integrated with Darwin's theory of evolution by natural selection through the discipline of population genetics. The importance of natural selection as a cause of evolution was accepted into other branches of biology. Moreover, previously held notions about evolution, such as orthogenesis and "progress" became obsolete.[7] Scientists continue to study various aspects of evolution by forming and testing hypotheses, constructing scientific theories, using observational data, and performing experiments in both the field and the laboratory. Biologists agree that descent with modification is one of the most reliably established facts in science.[8] Discoveries in evolutionary biology have made a significant impact not just within the traditional branches of biology, but also in other academic disciplines (e.g., anthropology and psychology) and on society at large. Source of the article published in description is Wikipedia. I am sharing their material. Copyright by original content developers of Wikipedia. Link- http://en.wikipedia.org/wiki/Main_Page
Views: 29692 Shomu's Biology
Natural Selection and Fitness
This video describes some basic principles of evolution and fitness. Please comment and rate. Follow me on: Twitter @herbstscience www.herbstscience.com
Views: 881 David Herbst
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: 244489 Bozeman Science
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: 1907169 Khan Academy
Theories of Evolution - Charles Darwin and Natural Selection - GCSE Biology
Theories of Evolution - Charles Darwin and Natural Selection - GCSE Biology In this video, we look at the different theories of evolution including Jean Baptiste-Lamarck and Charles Darwin's natural selection. How have humans developed from simple life forms? http://imstuck.wix.com/imstuckgcserevision
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: 1381288 CrashCourse
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: 65341 khanacademymedicine
Biodiversity and natural selection
How does natural selection produce new species? Environmental conditions determine which individuals are likely to reproduce and which are not. Over time, this selection process gives rise to new species. For more biodiversity tutorials, visit http://bit.ly/cas-khan.
Evolution part 4, types of natural selection 2 (stabilizing selection)
For more information, log on to- http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html Natural selection is the gradual natural process by which biological traits become either more or less common in a population as a function of the effect of inherited traits on the differential reproductive success of organisms interacting with their environment. It is a key mechanism of evolution. The term "natural selection" was popularized by Charles Darwin who intended it to be compared with artificial selection, which is now called selective breeding. Variation exists within all populations of organisms. This occurs partly because random mutations occur in the genome of an individual organism, and these mutations can be passed to offspring. Throughout the individuals' lives, their genomes interact with their environments to cause variations in traits. (The environment of a genome includes the molecular biology in the cell, other cells, other individuals, populations, species, as well as the abiotic environment.) Individuals with certain variants of the trait may survive and reproduce more than individuals with other variants. Therefore the population evolves. Factors that affect reproductive success are also important, an issue that Charles Darwin developed in his ideas on sexual selection, for example. Natural selection acts on the phenotype, or the observable characteristics of an organism, but the genetic (heritable) basis of any phenotype that gives a reproductive advantage may become more common in a population (see allele frequency). Over time, this process can result in populations that specialize for particular ecological niches and may eventually result in the emergence of new species. In other words, natural selection is an important process (though not the only process) by which evolution takes place within a population of organisms. Natural selection can be contrasted with artificial selection, in which humans intentionally choose specific traits (although they may not always get what they want). In natural selection there is no intentional choice. In other words, artificial selection is teleological and natural selection is not teleological. Natural selection is one of the cornerstones of modern biology. The term was introduced by Darwin in his influential 1859 book On the Origin of Species,[1] in which natural selection was described as analogous to artificial selection, a process by which animals and plants with traits considered desirable by human breeders are systematically favored for reproduction. The concept of natural selection was originally developed in the absence of a valid theory of heredity; at the time of Darwin's writing, nothing was known of modern genetics. The union of traditional Darwinian evolution with subsequent discoveries in classical and molecular genetics is termed the modern evolutionary synthesis. Natural selection remains the primary explanation for adaptive evolution. Source of the article published in description is Wikipedia. I am sharing their material. Copyright by original content developers of Wikipedia. Link- http://en.wikipedia.org/wiki/Main_Page
Views: 9910 Shomu's Biology
The Theory of Evolution (by Natural Selection) | Cornerstones Education
The Theory of Evolution (by Natural Selection) is one of many learning resources available to primary schools who use our creative curriculum. === This video is nominated in the Scribey! awards in the Best Supporting Education Scribe category. === More than 1100 schools, 15,000 teachers and 260,000 children already love learning with the Cornerstones Curriculum. Find out more on our website or follow us on Twitter for regular updates. Website: http://www.cornerstoneseducation.co.uk Twitter: http://twitter.com/cornerstonesedu Facebook: https://www.facebook.com/Cornerstonesedu
Views: 176275 Cornerstones Education
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: 41258 YaleCourses
The Principles of Natural Selection
The 5 Principles of Natural Selection. Project by Ava T. and Cordelia L. Music: "Amazing Plan" by Kevin Macleod
Views: 10 Cordelia Lehto
The Secret To Becoming Natural With Women - Special Announcement By James Marshall
https://www.thenaturallifestyles.com/product-inquiry/ Due to popular demand: The Five Principles of Natural Seduction 2.0 will be taught this summer. Stay tuned. If you've ever wanted to learn from me but can't travel to Europe or Australia for live coaching, this is your next best option. There'll be much more coming up in the next few weeks, so keep your eyes peeled for more... - James
Views: 64141 The Natural Lifestyles
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: 935106 CrashCourse
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. Thank you for supporting our channel and helping us make great content. Kindly follow the “Paytm” link below to donate: http://p-y.tm/zU5pf6Ms 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: 17976 Concept Tutorial
Introduction to Natural Selection
Introduction to the principles of Natural Selection
Views: 23 Michelle Carlson
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
Descent with Modification-Evolution by Natural Selection
Dubay outlines the principles of natural selection using footage from live specimens in his IB Biology classroom. He identifies the fossil record as the hard compelling evidence to support the idea that today's diversity of life is the result of eon's of natural selection.
Views: 646 Dan Dubay
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: 1628115 Stated Clearly
LS4B - Natural Selection
In this video Paul Andersen defines natural selection as differential reproductive success. He then explains how natural selection shapes organisms on our planet through variation and selection. A K-12 teaching progression is also included. 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 All of the images are licensed under creative commons and public domain licensing: Cameron, J. English: Charles Darwin (1809-1882) in His Later Years. This Image Is Flipped. Darwin's Mole Was on the Right Side of His Nose., 1869. Unknown. http://commons.wikimedia.org/wiki/File:Charles_Darwin_01.jpg. "File:Antibiotic Resistance.svg." Wikipedia, the Free Encyclopedia. Accessed June 10, 2013. http://en.wikipedia.org/wiki/File:Antibiotic_resistance.svg. "File:Big and Little Dog 1.jpg." Wikipedia, the Free Encyclopedia. Accessed June 10, 2013. http://en.wikipedia.org/wiki/File:Big_and_little_dog_1.jpg. "File:Biston.betularia.7200.jpg." Wikipedia, the Free Encyclopedia. Accessed June 10, 2013. http://en.wikipedia.org/wiki/File:Biston.betularia.7200.jpg. "File:Biston.betularia.f.carbonaria.7209.jpg." Wikipedia, the Free Encyclopedia. Accessed June 10, 2013. http://en.wikipedia.org/wiki/File:Biston.betularia.f.carbonaria.7209.jpg. "File:Black and White Wolves.jpg." Wikipedia, the Free Encyclopedia. Accessed June 10, 2013. http://en.wikipedia.org/wiki/File:Black_and_White_Wolves.jpg. "File:EscherichiaColi NIAID.jpg." Wikipedia, the Free Encyclopedia. Accessed June 10, 2013. http://en.wikipedia.org/wiki/File:EscherichiaColi_NIAID.jpg. "File:Great Tit (Parus Major) 1.jpg." Wikipedia, the Free Encyclopedia. Accessed June 10, 2013. http://en.wikipedia.org/wiki/File:Great_Tit_(Parus_major)_1.jpg. "File:Lichte En Zwarte Versie Berkenspanner.jpg." Wikipedia, the Free Encyclopedia. Accessed June 10, 2013. http://en.wikipedia.org/wiki/File:Lichte_en_zwarte_versie_berkenspanner.jpg. "File:Parusmajorde.jpg." Wikipedia, the Free Encyclopedia. Accessed June 10, 2013. http://en.wikipedia.org/wiki/File:Parusmajorde.jpg. information, This file is lacking author. Deutsch: Dillinger Hütte Um 1850., see Metadata. This file is lacking source information. http://commons.wikimedia.org/wiki/File:DH_1850.jpg. Varco, Tom. Escitalopram 10mg Tablets (Lexapro Brand), August 8, 2006. Own work. http://commons.wikimedia.org/wiki/File:Lexapro_pills.jpg.
Views: 25393 Bozeman Science
Natural Selection
Survival of the fittest happens when individuals within a population are suited to their environment enough to reproduce. Organisms that are not well adapted do not survive to pass their traits along. There are four principles of natural selection discussed here as well as the distribution patterns of polygenic natural selection.
Evolution part 2, Darwin's postulates (theory of evolution)
For more information, log on to- http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html Other naturalists of this time speculated on evolutionary change of species over time according to natural laws. Maupertuis wrote in 1751 of natural modifications occurring during reproduction and accumulating over many generations to produce new species.[21] Buffon suggested that species could degenerate into different organisms, and Erasmus Darwin proposed that all warm-blooded animals could have descended from a single micro-organism (or "filament").[22] The first full-fledged evolutionary scheme was Lamarck's "transmutation" theory of 1809[23] which envisaged spontaneous generation continually producing simple forms of life developed greater complexity in parallel lineages with an inherent progressive tendency, and that on a local level these lineages adapted to the environment by inheriting changes caused by use or disuse in parents.[24][25] (The latter process was later called Lamarckism.)[24][26][27][28] These ideas were condemned by established naturalists as speculation lacking empirical support. In particular Georges Cuvier insisted that species were unrelated and fixed, their similarities reflecting divine design for functional needs. In the meantime, Ray's ideas of benevolent design had been developed by William Paley into a natural theology which proposed complex adaptations as evidence of divine design, and was admired by Charles Darwin.[29][30][31] The critical break from the concept of fixed species in biology began with the theory of evolution by natural selection, which was formulated by Charles Darwin. Partly influenced by An Essay on the Principle of Population by Thomas Robert Malthus, Darwin noted that population growth would lead to a "struggle for existence" where favorable variations could prevail as others perished. Each generation, many offspring fail to survive to an age of reproduction because of limited resources. This could explain the diversity of animals and plants from a common ancestry through the working of natural laws working the same for all types of thing.[32][33][34][35] Darwin was developing his theory of "natural selection" from 1838 onwards until Alfred Russel Wallace sent him a similar theory in 1858. Both men presented their separate papers to the Linnean Society of London.[36] At the end of 1859, Darwin's publication of On the Origin of Species explained natural selection in detail and in a way that led to an increasingly wide acceptance of Darwinian evolution. Thomas Henry Huxley applied Darwin's ideas to humans, using paleontology and comparative anatomy to provide strong evidence that humans and apes shared a common ancestry. Some were disturbed by this since it implied that humans did not have a special place in the universe.[37] Precise mechanisms of reproductive heritability and the origin of new traits remained a mystery. Towards this end, Darwin developed his provisional theory of pangenesis.[38] In 1865 Gregor Mendel reported that traits were inherited in a predictable manner through the independent assortment and segregation of elements (later known as genes). Mendel's laws of inheritance eventually supplanted most of Darwin's pangenesis theory.[39] August Weismann made the important distinction between germ cells (sperm and eggs) and somatic cells of the body, demonstrating that heredity passes through the germ line only. Hugo de Vries connected Darwin's pangenesis theory to Weismann's germ/soma cell distinction and proposed that Darwin's pangenes were concentrated in the cell nucleus and when expressed they could move into the cytoplasm to change the cells structure. De Vries was also one of the researchers who made Mendel's work well-known, believing that Mendelian traits corresponded to the transfer of heritable variations along the germline.[40] To explain how new variants originate, De Vries developed a mutation theory that led to a temporary rift between those who accepted Darwinian evolution and biometricians who allied with de Vries.[25][41][42] At the turn of the 20th century, pioneers in the field of population genetics, such as J.B.S. Haldane, Sewall Wright, and Ronald Fisher, set the foundations of evolution onto a robust statistical philosophy. The false contradiction between Darwin's theory, genetic mutations, and Mendelian inheritance was thus reconciled.[43] I Source of the article published in description is Wikipedia. I am sharing their material. Copyright by original content developers of Wikipedia. Link- http://en.wikipedia.org/wiki/Main_Page
Views: 21401 Shomu's Biology
Darwin's Natural Selection - Explained
A short, simple (hopefully amusing) explanation of the Theory of Evolution as put forth by Charles Darwin and Alfred Russel Wallace. Please forgive the cheap audio and wandering accent.
Views: 18560 Greyfried
Natural Selection In Pokemon?!
Pokemon Sun And Moon came out recently and they are fantastic games. New pokemon varieties came out that showed something similar to natural selection. Today I explain evolution and natural selection in the pokemon world and in the real world.
Views: 8174 Super Scienced
Natural Selection and Adaptation
Short film on natural selection and adaptation
Views: 42 Lordsbioclass
The Origin Of Species by Natural Selection Part 1 by Charles Darwin (Science Audiobook)
The introduction lasts till 44:40 mark and the main text starts at 44:48 mark. The Origin Of Species by Natural Selection Part 1 by Charles Darwin (Science Audiobook)
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: 2471 aussiETau
Charles Darwin's Theory Of Natural Selection
This is a funny explanation of Charles Darwin's theory of evolution. It includes an example to help everybody understand it.
Views: 2759 Kristina Gurcyte
Chapter 16.1 - Core Principles of Evolution
In this video, we will learn of the Core Principles of Evolution: Descent with Modificiation and Natural Selection.
Views: 249 Justin Weiss
Evolution by natural selection
Walking through steps of how natural selection can cause the evolution of a population over generations (I discuss it as a four step process) ... discusses the ideas and applies each step to a real life example
Views: 1062 BleierBiology
Unit 6 Evolution: Concept 1 Notes HONORS
Principles of Natural Selection, Modes of Selection, Mechanisms of Microevolution, and Hardy-Weinberg Equilibrium
This video is about ToK Essay #2 (the one about natural selection)
Views: 2383 Daniel Trump