Penguins have a gland above their eye that turns saltwater into freshwater.
12
Condoms were originally made of animal intestines or linen.
347
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 sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
The elephant brain weighs about 6,000g.
274
An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
10