Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
Dogs have been man's pet for over 14,000 years.
224
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
The cat brain weighs about 30g.
167