Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Dolphins have names for one another.
18
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
Gorillas can catch human colds and other illnesses.
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