Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
A group of pugs is called a grumble.
10
The cat brain weighs about 30g.
167
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
A group of kittens is called a "kindle".
10
Jellyfish as a species are actually older than dinosaurs and sharks.
383