Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
Cockroaches can live for 9 days after their head has been cut off.
140
Skittles and jellybeans contain crushed insect cocoons which are used to coat the candies to give them that special shine.
9
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
Condoms were originally made of animal intestines or linen.
347