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
Mosquitoes don't just bite you, they also pee on you.
11
In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
151
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
Most of the dust underneath your bed is actually your own dead skin.
251
Your ears secrete more earwax when you are afraid than when you aren't.
229