The Amazon rainforest produces more than 20% the world's oxygen supply.
182
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
There are approximately three chickens for every human on Earth.
13
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119