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
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Condoms were originally made of animal intestines or linen.
347