Jellyfish as a species are actually older than dinosaurs and sharks.
383
Beavers have orange teeth!
23
The average life span of a hermit crab is 75 years!
45
A hedgehog's heart beats 300 times a minute on average!
14
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
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
The world's smallest mammal is the bumblebee bat of Thailand, weighing less than a penny.
60