Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
151
Most of the dust underneath your bed is actually your own dead skin.
251
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
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
Within three days of death, the enzymes that once digested your food begin to eat you.
22