Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
Mosquitoes don't just bite you, they also pee on you.
11
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
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
Cockroaches can live for 9 days after their head has been cut off.
140
In 1386, a pig in France was executed by public hanging for the murder of a child.
469