Bats sleep 18-20 hours per day.
5
The reindeer is the only mammal that can see UV light.
17
Gorillas can catch human colds and other illnesses.
205
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
Sharks, like other fish, have their reproductive organs in their chests.
248
Penguins have a gland above their eye that turns saltwater into freshwater.
12
The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
12