The cat brain weighs about 30g.
167
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
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
When cats are happy, they may squeeze their eyes shut.
10
Domestic pigs average a top speed of about 11 miles per hour.
182
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