Poon Lim survived 133 days alone on a raft at sea by fishing, drinking bird blood, and killing a shark with a jug of water.
21
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
Your ears secrete more earwax when you are afraid than when you aren't.
229
Most of the dust underneath your bed is actually your own dead skin.
251