Dogs have been man's pet for over 14,000 years.
224
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Sloths take two weeks to digest their food.
243
The elephant brain weighs about 6,000g.
274
Penguins have a gland above their eye that turns saltwater into freshwater.
12
The octopus does not have a blind spot.
273