The Basenji dog is the only dog that is not able to bark.
4
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
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