Lobsters have blue blood.
476
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
Sloths take two weeks to digest their food.
243
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
The reindeer is the only mammal that can see UV light.
17