By Elizabeth Landau, CNN
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A dinosaur species called allosaurus had neck muscles that allowed it to whip its head back and forth while attacking prey, a new study in the journal Palaeontologia Electronica suggests.

Researchers led by Ohio University paleontologist Eric Snively created a three-dimensional model of the dinosaur bones based on CT scans, and figured out what the muscles must have been like. They examined a specimen called Big Al, about 150 million years old.

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