The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
The Basenji dog is the only dog that is not able to bark.
4
Gorillas can catch human colds and other illnesses.
205
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
Sharks, like other fish, have their reproductive organs in their chests.
248
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2