Mosquitoes don't just bite you, they also pee on you.
11
Most of the dust underneath your bed is actually your own dead skin.
251
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
In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
151
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7