Robert Wadlow is the tallest man recorded in history. He grew to be eight feet and eleven inches and weighed 490 pounds when he died.

Sterling silver is not pure silver. Because pure silver is too soft to be used in most tableware it is mixed with copper in the proportion of 92.5 percent silver to 7.5 percent copper.

The sperm of a mouse is actually longer than the sperm of an elephant.

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