The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
Most of the dust underneath your bed is actually your own dead skin.
251
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
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5