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
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Early American humans hunted car-size armadillos and used their shells for houses.
12
Cats recognise the voice of their owner, but never evolved to care.
22
The elephant brain weighs about 6,000g.
274