The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
The average ice berg weighs 20,000,000 tons!
54
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41