Your ears secrete more earwax when you are afraid than when you aren't.
229
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
In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
151
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
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
Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13