A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Female kangaroos have three vaginas.
2
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11
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 recognise the voice of their owner, but never evolved to care.
22
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11