Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
A cow produces around 200,000 glasses of milk in her lifetime.
373
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
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11