Bats sleep 18-20 hours per day.
5
Sloths take two weeks to digest their food.
243
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
A domestic cat can sprint at about 31 miles per hour.
274
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20