A newly discovered dinosaur was built sort of like a biplane, but probably did not fly as well — if at all.
Scientists on Tuesday described a fossil of the strange dinosaur, which lived in China 125 million years ago. The creature was covered in feathers and apparently had two sets of wings and may have been able to glide.
The meat-eating creature, called Changyuraptor yangi, had exceptionally long tail feathers — the longest feathers of any dinosaur, at one foot (30 cm) in length, about the same as eagle wing feathers. It had feather-covered forelimbs akin to wings as well as legs covered in feathers in a way that gave the appearance of a second set of wings.
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