The elephant brain weighs about 6,000g.
274
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
10
The colossal squid has the largest eyes in the world.
4
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A 42-foot sperm whale has about 7 tons of oil in it.
209