vendredi 2 décembre 2022

 

  • video 5'37 : Birds-of-Paradise Project Introduction : https://youtu.be/YTR21os8gTA Explore more: http://www.birdsofparadiseproject.org The Birds-of-Paradise Project reveals the astounding beauty of 39 of the most exquisitely specialized animals on earth. After 8 years and 18 expeditions to New Guinea, Australia, and nearby islands, Cornell Lab scientist Ed Scholes and National Geographic photojournalist Tim Laman succeeded in capturing images of all 39 species in the bird-of-paradise family for the first time ever. This trailer gives a sense of their monumental undertaking and the spectacular footage that resulted. Filmed by Tim Laman, Ed Scholes, and Eric Liner. Produced and Edited by Eric Liner.

  • video 8'25 : Speciation: An Illustrated Introduction : https://www.birdsofparadiseproject.org/evolution-in-isolation/ 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.

  • read : https://www.birdsofparadiseproject.org/evolution-in-isolation/

  • video 8'28 : Natural Selection & Sexual Selection: An Illustrated Introduction : https://youtu.be/RxHdzw7E0wU How does evolution happen? Through a gradual process called selection. Individuals that are better equipped to survive and reproduce pass those traits to their offspring. These "selected" changes accumulate over thousands of years. We tend to think of natural selection—"survival of the fittest"—but sexual selection works the same way and can be just as strong in shaping how species look and act.

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