Penguins have a gland above their eye that turns saltwater into freshwater.
12
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
A dork is a whale's penis.
327
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
Sheep, goats, octopuses, and toads have rectangular pupils.
7
An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
10