Your ears secrete more earwax when you are afraid than when you aren't.
229
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
Skittles and jellybeans contain crushed insect cocoons which are used to coat the candies to give them that special shine.
9
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13