Dogs were domesticated at least 15000 years ago. Artificial selection can work a lot faster than natural selection, particularly since mutations deleterious in the wild are allowed to persist in domestic species.
Evolution can work very fast: across 33 breeds, dog brains have diverged structurally after just a few hundred years of selection for doing different tasks. HT @sapinker.https://news.harvard.edu/gazette/story/2019/09/harvard-researcher-finds-canine-brains-vary-based-on-breed/ …
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Most breeds diverged only a few hundred years ago. Original domestication date is irrelevant.
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Yet our digestive tracts have not changed significantly from our frugivours ancestors.
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No, the human digestive system has evolved radical differences to those of our frugivorous ancestors. We evolved from a frugivore into a facultative carnivore in the give or take 6 million years since we split from chimps.
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In the 1950s Dmitry K. Belyaev started an experiment to replay the process of domestication with foxes. By 2006, most of the foxes were behaving like domestic dogs.http://www.bbc.com/earth/story/20160912-a-soviet-scientist-created-the-only-tame-foxes-in-the-world …
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Meanwhile humans have been subjected to much more varied and dramatic selection criteria (industrial/tech revolutions), but the "enlightened" Left thinks no race/gender differences would result.
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What?? Industry and technology haven't been drivers of natural selection. They have enabled much greater survival and have effectively stopped natural selection in humans.
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One might call it intelligent design
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