Woodpecker scalps, porpoise teeth and giraffe tails have all been used as money.
46
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Honeybees have a type of hair on their eyes!
22
The oldest recorded elephant lived for 82 years.
213
A rodent's teeth never stop growing.
16
A group of pugs is called a grumble.
10
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
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20