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
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
A 42-foot sperm whale has about 7 tons of oil in it.
209
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456