An artist's reconstruction of what the newly described bird-like dinosaur (Norellraptor barsboldi) would have looked like. (Image credit: Mr. Zhao Chuang)A predatory bird-like dinosaur with four wings discovered in China adds evidence to the idea that flight evolved several times in different dinosaur groups.The exceptionally well-preserved feathered dinosaur, which has been named Norellraptor barsboldi, was 3 years old when it died and measured just 21 inches (57 centimeters) long. It was found in the Early Cretaceous Jiufotang Formation in northeastern China, which dates to between 145 million and 100 million years ago.N. barsboldi had the sharply curved predatory teeth and claws you'd exp...