Sharks have been on the planet longer than trees.
14
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Alligators can live up to 100 years.
337
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
The elephant brain weighs about 6,000g.
274
Dogs have been man's pet for over 14,000 years.
224