Your ears secrete more earwax when you are afraid than when you aren't.
229
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218
The Jewel Wasp injects a drug into a cockroach’s brain, turns it into a zombie, rides it like a horse back to its burrow, and then lets its hatched larvae feed on the cockroaches body from the inside.
6
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
Cockroaches can live for 9 days after their head has been cut off.
140
Mosquitoes don't just bite you, they also pee on you.
11
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7