The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
Skittles and jellybeans contain crushed insect cocoons which are used to coat the candies to give them that special shine.
9
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
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13