The Basenji dog is the only dog that is not able to bark.
4
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
The octopus does not have a blind spot.
273
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Giant Anteaters' front legs look like a panda.
48