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
Sharks have been on the planet longer than trees.
14
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
Lobsters have blue blood.
476
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
There's a rare breed of pig that looks like a sheep.
14