One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Mosquitoes don't just bite you, they also pee on you.
11
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
-12
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 sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11