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Most people think that dogs were descendants of wolves, which bred and evolved into a domesticated animal. Other scientists, believed wolves were the chief contributor, suspected that jackals or coyotes contributed to the dog's ancestry.
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Early domesticated dogs provided early humans with a guard animal, a source of food and fur.
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The intentional cross-breeding of dogs still continues to this day, to create the designer dogs!
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Dogs are now used for similar jobs that they had back then. They are great rescue dogs, sled dogs, guard dogs, tracking dogs, detection dogs, and a mans best friend(:
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There are tons of different breeds of dogs. There are Herding dogs and Sheperds, Gun dogs and Scenthounds, Sighthounds and Bulldogs, and Terriers!
