QUEENSLAND, Australia, Dec. 10 (UPI) --For the orange spotted filefish (or harlequin filefish), the saying "you are what you eat" isn't just a cliche, it's a way of life. At some point in evolutionary ...

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One coral-living fish has found an ingenious way to avoid being gobbled up during a nap, a new study finds. The harlequin filefish has evolved to have polka-dot markings that match its coral home.