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الرسالة: [QUOTE="My Rock, post: 42969, member: 2"] [RIGHT] [SIZE=4][COLOR=royalblue]هل معناة ان كل ما موجود في ويكيبيديا هو مغلوط؟[/COLOR][/SIZE] [SIZE=4][COLOR=royalblue][/COLOR][/SIZE] [SIZE=4][COLOR=royalblue]لكن لابأس, لنأتي للابحاث الانجليزية, و سأترك لك عناء قراءتها[/COLOR][/SIZE] [SIZE=4][COLOR=#4169e1][/COLOR][/SIZE] [SIZE=4][COLOR=#4169e1]فمن موقع الناشونال جيوغرافك, اعطيك التالي:[/COLOR][/SIZE][/RIGHT] [LEFT][SIZE=4][COLOR=#4169e1][/COLOR][/SIZE] [/LEFT] [B][SIZE=3]Pre-Dinosaur Reptile Discovered -- Long-Necked Hunter [/SIZE][/B] [LEFT][SIZE=3]John Roach for National Geographic News [/SIZE] [SIZE=3]September 23, 2004[/SIZE][/LEFT] [SIZE=3]With its body obscured by murky waters, an ancient fanged [B]reptile[/B] may have used its long neck to lunge at fish and squid. The scenario is based on analysis of a 230-million-year-old fossil discovered in southeastern China. [/SIZE][LEFT][SIZE=3]The new creature appeared long before the dinosaurs and is named [I]Dinocephalosaurus orientalis,[/I] which means "terrible headed lizard from the Orient." It was a protorosaur, part of an order of diverse, predatory r[B]eptiles[/B] that lived as far back as 280 million years ago. [/SIZE][/LEFT] [SIZE=3]The ancient reptile had short and broad limbs with relatively few bones in the wrist and ankle joints, an indication that it was more adapted to an aquatic lifestyle than other protorosaurs. (Scientists say living aquatic reptiles may have fewer bones in wrists and ankles than their terrestrial counterparts.) [/SIZE] [SIZE=3][I]Dinocephalosaurus[/I] also had a relatively stiff neck that was about 5.5 feet (1.7 meters) long. That's nearly twice as long as its trunk, which was three feet (one meter) long. Several thin and flexible rib bones, called cervical ribs, ran along the neck portion of the creature's spine, each bridging several of its 25 neck vertebrae. [/SIZE][LEFT][SIZE=3]"Protorosaurs as a group all have at least somewhat elongated neck vertebrae," said Olivier Rieppel, curator of fossil amphibians and reptiles at the Field Museum in Chicago. Rieppel is co-author of the paper that describes the fossil, which appears in tomorrow's issue of the journal [I]Science.[/I][/SIZE] [/LEFT] [RIGHT]للتكملة و التأكد: [URL="http://news.nationalgeographic.com/news/2004/09/0923_040923_protorosaur.html"]http://news.nationalgeographic.com/news/2004/09/0923_040923_protorosaur.html[/URL] [/RIGHT] [LEFT][URL="http://www.arabchurch.com/forums/"][B][SIZE=4][COLOR=#000033] [/COLOR][/SIZE][/B][/URL][/LEFT][URL="http://www.arabchurch.com/forums/"] [B]What is a dinosaur?[/B] [LEFT]The word dinosaur means "terrible lizard". [B]Dinosaurs were reptiles[/B], meaning that they had no fur and hatched from eggs. They were closely related to lizards, but were really very different. There are many differences, but the main one lies where you'd least expect it. It is the way their legs join to their hips. It sounds funny, but if you think about it really, it is true. If you look at a lizard, you'll notice that their legs are in a kind of squatted position, with the legs going out to the side. A dinosaurs legs, however, go straight down, much like our own. So, that is how you can tell the difference between a dinosaur and a lizard, if you should ever encounter one, or if it is a question on Jeopardy. [/LEFT][/URL][LEFT] [URL="http://www.paleontology.esmartstudent.com/dinosaurs.html"]http://www.paleontology.esmartstudent.com/dinosaurs.html[/URL] [/LEFT] [RIGHT][B][SIZE=4][COLOR=royalblue]لنرى ماذا سيكون ردك, فهل ستشكك بقناة الناشونال جيوغرافك؟[/COLOR][/SIZE][/B][/RIGHT] [/QUOTE]

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