Ouch! A bee sting is a painfully memorable experience, but do you know what actually happens (to the bee and to you) when a bee stings? Not all bees have stingers -- only those whose job it is to prot …

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You're walking in a park when suddenly a bird bursts into song. At a spot where a pile of leaves are flying, you see it-a large, robinlike bird with orange flanks and a white belly. It's a rufus-sided …

For thousands of years, bison (the North American buffalo) traveled widely over the western plains of North America, grazing on prairie grasses and finding drinking water with their acute sense of sme …

For centuries, humans have treasured pearls. The lustrous play of light across the surfaces of good pearls is so attractive that people have paid fortunes for them, even though they have no human use …

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