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
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
Within three days of death, the enzymes that once digested your food begin to eat you.
22
In 1386, a pig in France was executed by public hanging for the murder of a child.
469
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