Penguins have a gland above their eye that turns saltwater into freshwater.
12
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 ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Sharks, like other fish, have their reproductive organs in their chests.
248
Whales and dolphins can't taste anything other than salt.
11
Denmark has twice as many pigs as there are people.
66