There are approximately three chickens for every human on Earth.
13
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
Even Antarctica has an area code. It's 672.
58
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The Sahara desert expands at about 1km per month.
90
One cubic mile of seawater contains about 50 pounds of gold.
79