Dog Breeding

This is part of: Evolution: Constant Change and Common Threads


The many forms of dogs that exist today were all created through selective breeding from the dog's ancestor, the wolf. In a span of less than 10,000 years, breeders have changed traits and body shapes of dogs by artificial selection-for example, emphasizing different aspects of hunting and herding behavior.

(Duration: 01 min 53 sec)
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