Iguanas have two penises!
55
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10
A new born kangaroo is small enough to fit in a spoon!
7
A duck's quack doesn't echo, and no one knows why.
173
Greyhounds have the best eyesight of any breed of dog.
28
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
An ant brain has about 250 000 brain cells. A human brain has 10,000 million so a colony of 40,000 ants has collectively the same size brain as a human.
118