Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
151
Condoms were originally made of animal intestines or linen.
347
Some Chinese-made hair bands were fashioned from recycled condoms.
131