Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Cows can sleep standing up, but they can only dream lying down.
745
There are approximately three chickens for every human on Earth.
13