Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The elephant brain weighs about 6,000g.
274
If it isn't moving a frog can't see it. If the frog can't see it, he won't eat it.
28
A fall of 30 feet can be survived by most cats.
10
A 42-foot sperm whale has about 7 tons of oil in it.
209