The octopus does not have a blind spot.
273
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
The elephant brain weighs about 6,000g.
274
A puppy is born blind, deaf, and toothless.
16
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
The cat brain weighs about 30g.
167
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271