The head of a jellyfish is called the "Bell."
6
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Sharks have been on the planet longer than trees.
14
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
The cat brain weighs about 30g.
167
The colossal squid has the largest eyes in the world.
4