When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Bats sleep 18-20 hours per day.
5
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
Rattlesnake mating sessions have been known to last more than 22 hours.
232
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