

15/08/2007
The dog is the ultimate human creation. With 400 breeds and counting, the dog is more varied in size and behavior than any other species on the planet. National Geographic looks at man's evolutionary manipulation of dogs' appearance, talents and temperament - and the accelerating efforts to create breeds to suit our needs (more than 80 percent of today's breeds did not exist 150 years ago). From desirable traits like supersensitive hearing and smell to the unintended consequences of genetic diseases, learn how nature and man have partnered to deliberately create new and specialized versions of man's best friend.

Gregory Acland
as

Gustavo D. Aguirre
as

Mike Christman
as

Trey Fondon
as

Rodd Houston
as Narrator

Adam Miklosi
as

Alice Moon-Fanelli
as

James Serpell
as

Klim Sulimov
as
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