The octopus does not have a blind spot.
273
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Dogs have been man's pet for over 14,000 years.
224
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6