birds archeology dinosaurs flight science - 8257616384
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Archaeologists have unearthed the fossil of a "four-winged" dinosaur bird – indicating that feathered dinosaurs may have been able to fly before the evolution of birds.

The long tail feathers of Changyuraptor, from north-east China, would have provided the stability and speed control required for a safe landing.

At four feet long and weighing 90 pounds, the creature, which lived 125 million years ago, is the biggest dinosaur of its type yet discovered.

The well-preserved fossil shows that its body was cloaked by a full set of feathers and, in comparison with its body size, the foot-long tail feathers were unusually long.