The reindeer is the only mammal that can see UV light.
17
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
Early American humans hunted car-size armadillos and used their shells for houses.
12
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Sharks have been on the planet longer than trees.
14