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.

Duracell, the battery-maker, built parts of its new international headquarters using materials from its own waste.

At room temperature, the average air molecule travels at the speed of a rifle bullet.

AMAZING FACTS