The Billy goat urinates all over his belly, chest, and beard to attract a mate. Similarly, a male porcupine sprays his urine in different directions—and when he finds a mate, he urinates all over her.

The first vacuum was so large, it was brought to a house by horses.

Curly hair follicles are oval, while straight hair follicles are round.

A M A Z I N G   F A C T S