1. Tigers can see 6 times better at night than humans.

2. The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).

3. It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.

4. Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.

5. Jellyfish as a species are actually older than dinosaurs and sharks.

6. A 42-foot sperm whale has about 7 tons of oil in it.

7. Squirrels forget where they hide about half of their nuts.

8. An alligator can go through 2,000 to 3,000 teeth in a lifetime.

9. Jumping fleas can accelerate 50 times faster than the space shuttle.

10. Lobsters have blue blood.

11. The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.

12. Sharks, like other fish, have their reproductive organs in their chests.

13. Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.