The average life expectancy of an ant is 45-60 days.
81
Honeybees never sleep.
276
A cockroach will live nine days without it's head, before it starves to death.
26
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 killer whale's heart beats 30 times a minute under water, 60 times a minute on the surface.
30
A new born kangaroo is small enough to fit in a spoon!
7