When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
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
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
The largest breed of rabbit is the Flemish Giant.
65
The reindeer is the only mammal that can see UV light.
17
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10