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Observed Artificial Selection

Humans have been toying genetics for over 10,000 years, ever since the first animals were domesticated to assist with hunting and farm work. Modern day dogs, cattle, sheep, goats, cats, and pigs are all products of selective breeding. The wide range of dog and cat species is evidence of evolution in fast-forward. And artificial selection isn't limited to animals. Plants like corn, apples, wheat, and potatoes have been so heavily modified by selective breeding that they bare little resemblance to their counterparts just centuries ago.