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
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
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218
Condoms were originally made of animal intestines or linen.
347
Your ears secrete more earwax when you are afraid than when you aren't.
229
Some Chinese-made hair bands were fashioned from recycled condoms.
131
In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
151