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How the Guppy Got its Name

The tiny guppy, also called the millionfish or the rainbow fish, is named for amateur naturalist and Trinidad school superintendent Robert John Letchmere Guppy. This is part of a complete episode.

Xiphoid Process

Kim from Osoyoos, British Columbia, Canada, is studying anatomy and wonders why the lower end of one’s sternum is called the xiphoid process. The word process in this case means projection, and xiphoid comes from the Greek word for sword...

Sorry, Charlie

A Vermont family used to tease one of its members with the phrase “sorry, Charlie!” She’s surprised to learn that this catchphrase comes from a long-running series of TV commercials for canned tuna. This is part of a complete...