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
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12