An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
More than 25% of the world's forests are in Siberia.
51
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
Even Antarctica has an area code. It's 672.
58
There are approximately three chickens for every human on Earth.
13
The water of the Antarctica is so cold that nothing can rot there.
334
The state with the longest coastline in the Continental U.S. is Michigan.
31
The state of Florida is bigger than England!
74