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Show BIGbeers5 TheSaltLake Tribune NATION Friday, April 30,1999 A Humble Reptile? Long-Neck Dinosaur Couldn’t Hold His Head High THE ASSOCIATED PRESS WASHINGTON — The books and movies are wrong. The long- necked dinosaurs, which were the back locks up. This contradicts the popular view that the long-necked dinosaurs routinely cropped leaves from the top of trees and were able to stand on their hind legs largest animals ever to walk the Earth, did not go around cropping treetops but. in fact, could lift and reach the highest limbs the ground, a newstudy said Parrish. their heads onlya fewfeet above Michael Parrish, a researcher at Northern Illinois University said that he and acolleague used a computer model of the neck fos- sil bones of two types of dinosaurs, Diplodocus and Apato- saurus, to discover how well the huge animals wereable to move. Apatosaurus was once called Brontosaurus and is one of the best-knownof dinosaurs. What they found in their study, said Parrish, was that the even though dinosaurs had necks that could be 40 feet or more long, the animals could not raise their heads much above 9 to 12 feet. For the most part, he said, they held their headsstraight out or down — not up The study was being published todayin the journalScience. “The maximum amount they wereableto raise their heads was just a little bit above the height of their back,” said Parrish. “If you raise the neck any higher, the ver- tebrae runinto each other and the “It was a surprising result,” “We didn't think necksstickingup likeliving periscopes. Most museums with Sauropod fossils display the animal with the head held high. But Parrish said there long have been doubts that the animals’ hearts were strong enough to pump blood up the long necks to the head. Some researchers The bonesfavor a position where the head was low, swinging from athis findings.” side to side for grazing. And they were always grazing. Rigbysaid that he and other researchers have long suspected “These animals were so big that some of the assumptions theyhad to eat almost constantly to get enough energy,” said Par- about how well the Sauropods Tish. a whole group of biophysical laws.” even suggested double hearts as a solution to this problem The newstudy, though, shows that neck bones kept the Sauropods from raising their heads. J. Keith Rigby Jr. of the Uni- could movetheir heads “violated there would be any problem with themraising their heads, but it turnsoutthereis a real, physical limit. Parrish added: “I don’t think Warm summer mornings, family reunions andtrips to the lake are what summeris all about. Utahns are active — especially during the warm months. our study answers whether they could rise up ontheir hind legs, but if they did there would be a blood pressure problem. I don't think they would use that as a predominant wayof feeding, as some people have suggested” That's why The Salt Lake Tribune and Deseret Newsare kicking off the summerwith their annual Summer Fun special section. Publishing Sunday, May 23, a week before Memorial Day, this section is sure to be hot! The two animals studied are in a group known as Sauropods. These are massive animals with long tails and long necks and small heads. The Apatosaurus, for instance, is thought to have weighed up to 100 tons, stood up to 70 feet in height and had a tailto-head length of about 130 feet. Sauropods lived from 200million to 65 million years ago and were Your business can directly target customers with an advertisementin SummerFun. Don't let the SummerFunpass you by. More than 72 percentof the Salt Lake marketwill see your advertisement. one of the most successful animals that ever existed. Sauropods For moreinformation or to reserve your advertising space, contact your account executive orcall (801) 237-2713. fossils are the most common in just about every one of the ancient ecosystems, said Parrish. F]CONFISCAA ED4a ASSETS FROM NARCOTIC DEALERS Vy andothersfor violation of laws.Items obtainedfrom government seizure auction will go up forbid with other merchandise whichincludesthe bulkofites BangleDia 3.00ct Sapphire 3.00ct Deaa TIC Diam 2.7: Sct Sapphire 6.75ct SURaeCe eee 3 diamond & amethyst DECRTs se me: t% For years, scientists have depicted the animals as browsing from high vegetation or swimming in pools with their long versity of Notre Dame said he was happy to see some researcher was, at last, “taking a serious look at what has beenaccepted as degma in the past. 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