Sloths take two weeks to digest their food.
243
The reindeer is the only mammal that can see UV light.
17
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
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 oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492