When lions breed with tigers the resulting hybrids are known as ligers and tigons. There are also lion and leopard hybrids known as leopons and lion and jaguar hybrids known as jaglions.

An acre of trees can remove about 13 tons of dust and gases every year from the surrounding environment.

The average annual low for South pole is -61, compared with -3 at the North pole. The lowest temperature ever recorded at the South Pole is -117, while the record at the North Pole is -59.

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