Is it possible that we'll just never know the true origin of the human anus? "Our buts look like no other buts out there. And i think that is very, very cool" Coming up next, why are buts this episode is brought to you by k p m g risk services.
Once upon a time, there were no anuses. These ingenious organs allowed our primordial ancestors to grow bigger and more complex, but scientists still don’t understand how they evolved. And they’re still grasping at a mystery that literally surrounds it: Why is the human butt so big?
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