The Basenji dog is the only dog that is not able to bark.
4
There are no penguins in the North Pole.
56
The faster a kangaroo hops, the less energy it burns!
58
Dogs have four toes on their hind feet, and five on their front feet.
179
All the pet hamsters in the world are descended from a single wild golden Hamster found in Syria in 1930!
34
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
The katydid bug hears through holes in its hind legs!
110