This video from the Cornell Lab of Ornithology in the USA says about itself:
Speciation: An Illustrated Introduction
9 Sep 2013
Explore more at http://www.birdsofparadiseproject.org.
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.
The Cornell Lab of Ornithology writes about this:
Our Birds-of-Paradise Videos Have Been Watched for 30+ Years. Here’s 8 More Minutes
Last year we launched our Birds-of-Paradise Project website, full of fascinating natural history videos and educational activities. Since then, our videos have been watched nearly 7 million times for a collective 31 years of viewing time. We’ve just uploaded 29 more videos, including this one that tackles the question of how one species can become many over thousands of generations.
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