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Study draws 'virtual harvestmen'

Scientists have used CT scans to make 3D models of fossil harvestmen, revealing just how little these spindly invertebrates have changed in 300 million years.

The X-ray technique allows the researchers to virtually extract the organism from its encapsulating rock and then study key anatomical features on a computer screen.

This creature, Macrogyion cronos, is distinguished here by its long legs, one of which has a big curve.

Modern relatives have a very similar appearance and use these looped structures to grab on to leaf parts as they move through foliage.

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