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You're Looking at an Insect Penis Inside its Mate

One of the biggest challenges for scientists studying the anatomy and physiology of genitalia is the fact that much of the real functional action happens deep inside females. It’s hard to see what’s going on in there. That’s why I love studies that rise to the challenge of giving us a peek inside. » 5/15/15 3:30pm 5/15/15 3:30pm