Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
The oldest recorded elephant lived for 82 years.
213
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Penguins have a gland above their eye that turns saltwater into freshwater.
12
The reindeer is the only mammal that can see UV light.
17
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20