A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255