Condoms were originally made of animal intestines or linen.
347
Sniffologists have the job of sniffing armpits.
4
Within three days of death, the enzymes that once digested your food begin to eat you.
22
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13