When dragonflies mate, their tails form a love heart.
22
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
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
Gorillas can catch human colds and other illnesses.
205
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10