Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
Sniffologists have the job of sniffing armpits.
4
Your ears secrete more earwax when you are afraid than when you aren't.
229
Skittles and jellybeans contain crushed insect cocoons which are used to coat the candies to give them that special shine.
9
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
Most of the dust underneath your bed is actually your own dead skin.
251
Condoms were originally made of animal intestines or linen.
347