Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
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
Sniffologists have the job of sniffing armpits.
4
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
Cockroaches can live for 9 days after their head has been cut off.
140
Condoms were originally made of animal intestines or linen.
347