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Human testicles are much smaller, in proportion, to some of our primate cousins. Evolution can tell us why. But the size of other body parts is a little bit more of a mystery.
Case in point, meet a bad copy that posed for the camera recently and the pictures were shared online by Liberty Walk's ...
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The unique human body part that evolution cannot explain - MSNThe unique human body part that evolution cannot explain - The human chin has long been fertile ground for arguments between scientists over its purpose ...
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