A scorpion can hold its breath for up to 6 days.
19
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
The cat brain weighs about 30g.
167
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20