The Basenji dog is the only dog that is not able to bark.
4
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Gorillas can catch human colds and other illnesses.
205
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A domestic cat can sprint at about 31 miles per hour.
274
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156