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
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
When cats are happy, they may squeeze their eyes shut.
10
Gorillas can catch human colds and other illnesses.
205
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9