Cows can sleep standing up, but they can only dream lying down.
745
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Mosquitoes don't just bite you, they also pee on you.
11
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
In 1949, an official boxing match between a bear and a man was held. The bear won.
41