The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
151
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6