Proofreading is Good!
Otherwise you end up with sentences like this one, about the evolution of a type of deer with an aquatic affinity:
All belong to the ancient ruminant family Tragulidae, which split some 50 years ago from other ruminants, the group that went on to evolve into cattle, goats, sheep, deer and antelope.

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In related news, I was pretty sure even the bigger, North American deer species liked water. Moose are always lounging around in it, and the guys (my brother and his hunting buddies) have a fair amount of anecdotal evidence of hunted deer hiding in water....
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