Scientists unearth fossilized, flightless, four-foot terror bird (+video)

April 11, 2015 1:55 PM

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Scientists unearth fossilized, flightless, four-foot terror bird (+video)

An exquisitely preserved skeleton unearthed in Argentina reveals clues about how ancient terror birds communicated. 

The fossil of this prehistoric bird is so complete, paleontologists can tell you how good its hearing was.

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