Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Rattlesnake mating sessions have been known to last more than 22 hours.
232
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2