Condoms were originally made of animal intestines or linen.
347
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
Sharks, like other fish, have their reproductive organs in their chests.
248
The cat brain weighs about 30g.
167
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