Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
The reindeer is the only mammal that can see UV light.
17
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
Rattlesnake mating sessions have been known to last more than 22 hours.
232
When cats are happy, they may squeeze their eyes shut.
10