A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
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
Mosquitoes don't just bite you, they also pee on you.
11
Your ears secrete more earwax when you are afraid than when you aren't.
229
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Sniffologists have the job of sniffing armpits.
4
Most of the dust underneath your bed is actually your own dead skin.
251