- Wearing headphones for just an hour will increase the bacteria in your ear by 700 times.
- The Amazon rainforest produces half the world's oxygen supply.
- The stomach acids found in a snakes stomach can digest bones and teeth but not fur or hair.
- Your blood is 6 times thicker than water.
- The 'you are here' arrow on maps is called an ideo locator.
advertisement
![](spacer.gif) reload more facts | visit cool facts
add this widget to your website
|