For centuries, people believed that maggots and fungi magically sprung from inanimate objects out of thin air. Spontaneous generation! How babies happened was also shrouded in myth, and by the mid-1600s, people had yet to figure out that, in humans, barely visible eggs and microscopic sperm were part of the process. Turns out, all it took was a pair of frog pants to get the ball rolling in the right direction.
via Boing Boing
