One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
The cat brain weighs about 30g.
167
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
Tigers can see 6 times better at night than humans.
305
The colossal squid has the largest eyes in the world.
4
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11