The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
Condoms were originally made of animal intestines or linen.
347
Your ears secrete more earwax when you are afraid than when you aren't.
229
If you see an ingredients list that includes carmine, cochineal extract or natural red 4, the product contains crushed up bugs.
8
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6