A domestic cat can sprint at about 31 miles per hour.
274
The Basenji dog is the only dog that is not able to bark.
4
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
When cats are happy, they may squeeze their eyes shut.
10