Speciation: An Illustrated Introduction
593,748
Published 2013-09-09
There is a dizzying diversity of species on our planet. From genetic evidence we know that all of those species evolved from a single ancient ancestor. But how does one species split in to many? Through the evolutionary process of speciation — which begins when populations become isolated by changes in geography or by shifts in behavior so that they no longer interbreed. This video illustrates the speciation process in birds to help you understand the basis of earth's biodiversity.
Including photographs and video by Tim Laman
All Comments (21)
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Gotta love that sensual music setting the mood when you were talking about reproductive isolation
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Man, I just came here because of my science teacher.
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Quick video hack to make the video go by 'faster.' Put the playback speed at 2, or any other that you like, and open the transcript (use the three dots near the thumbs up buttons). Then read along with the video, or just listen. Reading helps you take in the information better.
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Just started working on this for homework now!
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This cleared up a lot of questions I had about speciation. Good video.
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This is the best explanation of speciation I have seen.
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this video does a great job at showing the types of speciation. they just don't have the name of them. Like I want the name and then describe what it is
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I always found speciation a bit confusing. This video does such a great job discussing and illustrating the topic. Great job as always Cornell :)
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Fantastic content and animation. Thank you very much!
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So clear! I love it!!
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I've never heard the term "ring species". I do believe there will be a book or two added to my shelves in the near future. Thanks!
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send me the answers for this: Using the information from the video, explain how birds evolved into different species in each part of the island. Your answer MUST INCLUDE the following terms: reproductive isolation, geographical isolation, genetic mutations, gradual change, different habitats.
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Why does the Male bird look so depresso expresso? (Well, he did kinda got dumped lol.) 3:33
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The best video of 2018 that I saw ☺
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Awesome photography and animaton
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greatest video on speciation out there
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nice clear explanation on a very difficult subject... evolution at the molecular level is a beast to understand
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I was forced to come here by my teacher, but this is actually really cool.
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An orthodox speciation (or precondition for it) is explained. Currently, the issue may be settled like this. Viewed in this way, however, difficulties in gradualism becomes clearer. Yet, much to be studied & analysed for more coherent reasoning.
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Me parecen súper interesantes los temas acerca de la evolución. Siempre ha Sido uno de mis temas favoritos, más la especiación, en la próxima semana expondré sobre este tema en mi clase de biología en la universidad
