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
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
151
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
Within three days of death, the enzymes that once digested your food begin to eat you.
22
Poon Lim survived 133 days alone on a raft at sea by fishing, drinking bird blood, and killing a shark with a jug of water.
21