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
Alligators can live up to 100 years.
337
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
The octopus does not have a blind spot.
273
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9