If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
Mosquitoes don't just bite you, they also pee on you.
11
The Pistol Shrimp can snap its claws together to create a sound of 218 decibels, louder than as supersonic jet at full speed. It only lasts for 1 millisecond. The snapping action also creates a bubble that is greater than 5000 Kelvin, close to the surface temperature of the sun.
21
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79