Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
A cow produces around 200,000 glasses of milk in her lifetime.
373
Early American humans hunted car-size armadillos and used their shells for houses.
12
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271