In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
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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
Within three days of death, the enzymes that once digested your food begin to eat you.
22
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7