Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The Basenji dog is the only dog that is not able to bark.
4
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
There are approximately three chickens for every human on Earth.
13