The sloth (a mammal) moves so slowly that green algae can grow undisturbed on its fur!
104
A full-grown bear can run as fast as a horse.
35
Cows can sleep standing up, but they can only dream lying down.
745
Black bears are not always black. They can be brown, cinnamon, yellow, and sometimes white.
32
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
