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由Britton編輯: 7/16/2015 8:17:16 PM
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Jurassic park raptors should've had feathers

Paleontologists recently unearthed this amazingly well fossilized dinosaur that has been named [i]Zhenyuanlong suni[/i]. You may notice something very interesting about this dinosaur. 1) its a raptor, complete with the sharp deadly toe claws 2) its got feathers. At about 2 meters in legnth (just over 6feet) its the biggest winged dinosaur discovered to date. [quote]An ancient feathered creature dug up in northeastern China is the largest winged dinosaur ever found, researchers say. The fossil of the prehistoric raptor is so well preserved that scientists have been able to reconstruct its impressive plumage, from the tiny feathers on its head and neck, to the larger quill pen-like feathers that sprout from its tail and substantial wings. A cousin of the velociraptor made famous by the Jurassic Park movies, the carnivore two metres in length lived 125m years ago in the region where dense forests became home to some of the first flowering plants.  ..... The near complete skeleton of the feathered raptor was found in sedimentary rock that formed in ancient lake beds in China’s Liaoning Province. The Yixian formation there has become a treasure trove of exquisitely-preserved dinosaurs, many of which [url=http://www.theguardian.com/science/2009/sep/24/dinosaur-fossil-discovery-china]sported feathers[/url] which confirms that birds evolved from dinosaurs. It’s the biggest dinosaur that has ever been found with wings,” said Steve Brusatte, a paleontologist at Edinburgh University. “In general it is very bird-like, but it’s big, and has these very short arms with full-blown wings.” Details of the discovery are published in the journal, Scientific Reports.  The specimen poses a conundrum for researchers, because despite its impressive wings, the animal was probably incapable of flight. Brusatte said their function was a mystery, but they might have been used in colourful sexual displays, just as peacocks parade their tail feathers to court peafowls. Another possibility is that the dinosaur used its wings to protect its eggs. [/quote] The discovery of this winged, yet flightless dinosaur is raising questions about why wings evolved in the first place if not for the purpose of flight. [quote] The discovery raises broader questions about how wings evolved in the first place. Small, fluffy feathers are thought to have arisen for warmth, with more elaborate feather structures emerging for displays, and ultimately flight. But Brusatte said that wings themselves might have evolved for reasons other than flight, before they helped creatures take to the skies. “When you see a dinosaur like this that’s pretty big, and has these short arms and bird-like wings, it begs that question: what are wings really for? We used to think pretty much anything that had wings was flying, but that’s not so clear now,” he said[/quote] Interesting. Discuss. [spoiler]source: http://www.theguardian.com/science/2015/jul/16/zhenyuanlong-suni-biggest-ever-winged-dinosaur-discovered-china [/spoiler]

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