Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
Sniffologists have the job of sniffing armpits.
4
Mosquitoes don't just bite you, they also pee on you.
11
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