Sheep, goats, octopuses, and toads have rectangular pupils.
7
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
The seahorse is the only fish to have a neck.
12
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
A puppy is born blind, deaf, and toothless.
16