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
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
A group of unicorns is called a blessing.
304
Penguins have a gland above their eye that turns saltwater into freshwater.
12
The head of a jellyfish is called the "Bell."
6
Jellyfish as a species are actually older than dinosaurs and sharks.
383