The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Sharks have been on the planet longer than trees.
14
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
-12
The elephant brain weighs about 6,000g.
274