A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
8
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Bats sleep 18-20 hours per day.
5