Cows can sleep standing up, but they can only dream lying down.
745
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
When dragonflies mate, their tails form a love heart.
22
Lurch, a Watusi bull, had the largest horns in the world.
32
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
A cat can jump FIVE TIMES as high as it is tall!
371
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8