Mosquitoes don't just bite you, they also pee on you.
11
Condoms were originally made of animal intestines or linen.
347
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
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
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6