Australia's Great Barrier Reef is 1,250 miles long!
45
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
The Caspian Sea is also classed as the world's largest lake.
52
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
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
Forest fires move faster uphill than downhill.
52