A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
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
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7