The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Your ears secrete more earwax when you are afraid than when you aren't.
229
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
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