The Basenji dog is the only dog that is not able to bark.
4
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
Moths are unable to fly during an earthquake.
328
Gorillas can catch human colds and other illnesses.
205
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
A scorpion can hold its breath for up to 6 days.
19