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.
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Tags: dog wolf selectiveBreeding
Uploaded by: tubeman ( Send Message ) on 02-08-2007.
Duration: 1m 58s