Condoms were originally made of animal intestines or linen.
347
Mosquitoes don't just bite you, they also pee on you.
11
Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
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
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
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