Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
46
The Basenji dog is the only dog that is not able to bark.
4
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20