Sharks have been on the planet longer than trees.
14
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
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
The head of a jellyfish is called the "Bell."
6
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The largest earthworm on record was found in South Africa and measured 22 feet.
151