A British bus company uses sheep urine to reduce city smog. A chemical in the urine converts part of the fuel exhaust into nonpolluting nitrogen and steam.

China is the world's largest market for BMW's top of the line 760Li. This car sells for $200,000 in China - more than almost all people in China make in a lifetime.

Only female mosquito's' bite and most are attracted to the color blue twice as much as to any other color.

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