Brazilian and Argentinian paleontologists Alexander Kellner, left, of National Museum of Brazil, Jorge Calvo, center, of Comahue University of Argentina and Juan Porfiri, right, investigator of Comahue University, present, a replica of a dinosaur skeleton of what could be a new dinosaur species, a giant, plant-eater, uncovered in Argentina's Patagonia region, in Rio de Janeiro, Brazil, 15 October 2007. With a length of 32 meters, it is among the largest ever found, and is named 'Futalognkosaurus dukei' after the Mapuche Indian words for 'giant'.  The Patagonian dinosaur was uncovered on the banks of Lake Barreales in the Argentine province of Neuquen and according with the scientists the giant herbivore walked the Earth some 88 million years ago.  (Austral Foto/Renzo Gostoli)
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