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
A killer whale's heart beats 30 times a minute under water, 60 times a minute on the surface.
30
The cat brain weighs about 30g.
167
The cicada, a fly found in Africa, spends 17 years of its life sleeping; and only two weeks is awake during which mates and then dies.
33
A polar bear's skin is black. Its fur is not white, but actually clear.
25
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
A completely blind chameleon will still take on the colors of its environment.
43