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Some dinosaurs hunted at night


By studying the eyes of nocturnal birds and reptiles, and comparing them with similar parts in dinosaur fossils, researchers have found that some dinosaurs hunted at night.

The results suggests that small, meat-eating dinosaurs were nocturnal; large, plant-eating dinosaurs tended to forage both during the day and at night.

The Science study also challenges the notion that mammals’ nocturnal nature evolved to avoid day-active dinosaurs.

Lars Schmitz and Ryosuke Motani of the University of California Davis have been looking at the eye parts of dinosaurs, and their modern-day descendants the lizards and birds, for a number of years.

They have been trying to determine just how big and how light-sensitive dinosaurs’ eyes would have been.

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Story: BBC News | Photo: L. Schmitz

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