Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The Basenji dog is the only dog that is not able to bark.
4