A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Early American humans hunted car-size armadillos and used their shells for houses.
12
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
Condoms were originally made of animal intestines or linen.
347
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
The elephant brain weighs about 6,000g.
274