Nature

- Season 25

(2006)

Nature: Chimpanzees - An Unnatural History by Allison Argo.

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"Nature" celebrates 25 years on public television.

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Once the realm of the ancient Incan Empire, this place of myth and legend also has a rich, intriguing natural history going back to the Jurassic period, marked by an event of monumental portion-the formation of the Central American land bridge 3 million years ago. The creatures of the Andes set this land apart from all other places on earth. The Andes are home to the zorro, a "false fox" with adaptations that make it a successful inhabitant of the Andes. The flamingo, too, has developed utterly unique and specialized adaptations in order to thrive in an environment ...

We have seen them dressed in costumes and dancing at circuses, living solitary lives at zoos or giving our children a thrill with a ride on their back. But the largest land animals live a life that is completely foreign to us when left to their own in the wild -- one complete with battles and births, kidnappings and camaraderie. More than fifteen years ago, Martyn Colbeck began to document in film and photos the lives of African elephants. For the better part of two decades, he has grown particularly close to the elephant matriarch, Echo, and her close-knit family, ...

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Learn how the domestication of dogs might have taken place, including the theory of biologist Raymond Coppinger that it was the animals themselves - and human trash - that inspired the transformation. The genetic analysis of Peter Savolainen of the Royal Institute of Technology in Sweden has placed the origins of domesticated dogs - and those of the first dog - in East Asia. You'll also discover 14 dog breeds that controversial genetic studies show are the most ancient - and the best living representatives of the ancestors to all living dogs.

Over 400 breeds of dog are recognized around the world, each unique for its personality, habits, and form. Most of these breeds exploded onto the scene over the past 150 years, spurred by the Victorian-era passion for the "dog fancy" - the selective breeding of dogs to enhance particular characteristics. By tinkering with its genetics, humans made the dog the most varied animal species on the planet - and also created a host of hereditary health problems.

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