The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
The octopus does not have a blind spot.
273
The elephant brain weighs about 6,000g.
274
Early American humans hunted car-size armadillos and used their shells for houses.
12
A domestic cat can sprint at about 31 miles per hour.
274
