The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
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
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Alligators can live up to 100 years.
337
Cows can sleep standing up, but they can only dream lying down.
745