Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
You can only remember 4 things at a time.
31
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Your fingernails grow faster in summer.
744
Ming-Na Wen, who portrays The Cavalry on Agents of S.H.I.E.L.D., was also the voice of Mulan. And she’s 50 years old.
7
Gorillas can catch human colds and other illnesses.
205
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30