The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
If you see an ingredients list that includes carmine, cochineal extract or natural red 4, the product contains crushed up bugs.
8
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Skittles and jellybeans contain crushed insect cocoons which are used to coat the candies to give them that special shine.
9
Cockroaches can live for 9 days after their head has been cut off.
140
Most of the dust underneath your bed is actually your own dead skin.
251
Sniffologists have the job of sniffing armpits.
4