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Yahoo! My Yahoo! Mail More Yahoo! Services Account Options New User? Sign Up Sign In Help Yahoo! Search web search Home Singapore Asia Pacific World Business Entertainment Sports Technology Africa Europe Latin America Middle East North America Dino tail feathers were carrot colored, study says By SETH BORENSTEIN,AP Science Writer - Thursday, January 28 Send IM Story Print WASHINGTON – Scientists have for the first time confirmed color in a dinosaur. Don't think purple Barney, but reddish-orange Conan O'Brien. The first solid proof of pigmentation has been spotted in the fossilized tail feathers of a smallish meat-eating dinosaur found in China and named Sinosauropteryx. The creature seems to have russet colored rings, according to a paper published online Wednesday in the journal Nature. That 125 million-year-old tail has the same internal cellular coloring agents as the hair of a red-haired person, said study lead author Mike Benton, a professor of paleontology at the University of Bristol in England. And the same finding provides what some outside experts say is even more conclusive evidence that some dinosaurs had feathers, further linking them to birds. Benton and his colleagues didn't actually see the reddish color itself. Using an electron microscope, they spotted the specific cellular signs of the color. An earlier study by another group of researchers and Benton's team found similar cellular color hints in prehistoric bird feathers. Drawings of dinosaurs show them in all sorts of hues, usually duller Earth tones such as brown and gray, but scientists have only speculated on their coloring. As their connection to birds came to light, so did the idea of brighter colors. But until now, there was no proof of any coloring. Before Benton's technique, which is likely to be copied with other dinosaur fossils, paleontologists had to look to a dinosaur's anatomy to guess at colors, said famed dinosaur expert Paul Sereno at the University of Chicago. The color and the feathers were probably used for display, like a peacock, he theorized. Sereno, who wasn't part of Benton's team, called it a "landmark paper" that gives us "a sneak peek at how they might have appeared when alive." "That's really cool just to be able to pin down this aspect," said University of Maryland paleontologist Thomas Holtz Jr., who wasn't part of the discovery team. "It does sort of help bring a more complete view of the living creature ... and further from just being a bunch of bones." This dinosaur was "a dinky little guy," Holtz said. Adult Sinosauropteryx were about three feet long, but the tail accounted for more than half of that length and it had a long neck, so "there's not a lot of dinosaur there," he said. It fed on small mammals, sort of like a prehistoric roadrunner, he said. While some dinosaurs are rather closely connected to birds evolutionarily, Sinosauropteryx is not. It was around earlier than the beginnings of birds and is the "most primitive feathered" dinosaur, Benton said. And those feathers, early in their evolutionary development, resemble tiny bristles, less than one-fifth of an inch tall, he said. "They are stuffed with melanosomes just like any other feathers," Benton said. Melanosomes are molecules that contain color-producing pigments. With the pigment long gone in fossils, the shape of the melanosome shows what color it used to be. Sinosauropteryx had sphere-shaped melanosomes which translate to red, and sausage-shaped ones which are whitish-gray. He and other researchers say the findings also strongly suggest these are feathers and not cartilage or some other tissue. Benton said it disproves the concept that the material is bacteria, a theory floated by a handful of scientists who still disagree with the mainstream view that dinosaurs had feathers. One of those feather skeptics, John Feduccia at the University of North Carolina, was not convinced by the Benton study. He said the melanosomes are not similar to those of other animals and doesn't disprove the bacteria concept. "Many people want dinosaurs to be feathered, so evidence is typically stretched beyond its content," Feduccia said in an e-mail. "There is a strong lure to be able to vicariously study dinosaurs at the backyard bird feeder." However, Sereno said Benton's research makes the case that color cells couldn't be bacteria because they are packed orderly instead of randomly. The idea of feathers on dinosaurs and the link to birds "is pretty much, I think, a done deal," Sereno said. ___ On the Net: Nature: http://www.nature.com/nature Recommend Send IM Story Print Related Articles EPA to visit Calif town with birth defect cluster AP - 1 hour 44 minutes ago Bangladesh hangs killers of independence leader Mujib Reuters - 2 hours 6 minutes ago Teen firefighters, friend ID'd in Pa. pond crash AP - 2 hours 19 minutes ago Karzai in London ahead of crunch talks AFP - 2 hours 23 minutes ago British lawyer denies Blair pressure over Iraq war AFP - 2 hours 28 minutes ago News Search Top Stories US new home sales slump to nine-month low in December Germany hikes 2010 growth forecast Saab gets reprieve as GM seals sale to Spyker Haiti queues for aid amid fresh aftershocks IMF says global recovery stronger, but still frail More Top Stories » ADVERTISEMENT Most Popular Most Viewed Most Recommended Saab gets reprieve as GM seals sale to Spyker Haitian police shoot scavengers indiscriminately Haiti queues for aid amid fresh aftershocks New York woman falls, rips Picasso painting Ericsson cuts 1,500 more jobs, profit plunges More Most Viewed » Woman who saved Anne Frank's diary dead at 100 Scientists praise Obama as Doomsday clock reset More Most Recommended » Elsewhere on Yahoo! 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