The elephant brain weighs about 6,000g.
274
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
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
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
Female kangaroos have three vaginas.
2