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
Cats and dogs can hear ultrasound.
350
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
When dragonflies mate, their tails form a love heart.
22