A team of blacksmiths, welders, artists and scientists have been working together in Canada to mount the T. rex bones without damaging them. Metal cradles hold 150 of the major bones precisely in place. Research Casting International hide caption

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'Nation's T. Rex' Strikes A Rapacious Pose

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An illustration of Pappochelys, based on its 240-million-year-old fossilized remains. This ancestor to today's turtle was about 8 inches long. Rainer Schoch/Nature hide caption

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How The Turtle Got Its Shell

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The skull of a Giganotosaurus. Courtesy Don Lessem hide caption

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Bankrolling A Dinosaur Dig And Unearthing A Giant: The Giganotosaurus

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Artistic life reconstruction of the new horned dinosaur Regaliceratops peterhewsi in the palaeoenvironment of the Late Cretaceous ofAlberta, Canada. Julius T. Csotonyi/Courtesy of Royal Tyrrell Museum, Drumheller, Alberta hide caption

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The skull of a chicken embryo (left) has a recognizable beak. But when scientists block the expression of two particular genes, the embryo develops a rounded "snout" (center) that looks something like an alligator's skull (right). Bhart-Anjan S. Bhullar hide caption

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How Bird Beaks Got Their Start As Dinosaur Snouts

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An artist's rendering of what Dearcmhara shawcrossi probably looked like in dinosaur times. Todd Marshall/University of Edinburgh hide caption

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Ancient Scottish Sea Reptile Not 'Nessie,' But Just As Cute

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The Smithsonian's Jon Blundell scans the fossilized foot bone — the metatarsal — of the Wankel T. rex to help create a digital 3-D image of the long-dead dinosaur. Nikki Kahn/The Washington Post hide caption

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America's T. Rex Gets A Makeover

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Reconstruction of Deinocheirus mirificus. Yuong-Nam Lee/Korea Institute of Geoscience and Mineral Resources hide caption

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Bigger Than A T. Rex, With A Duck's Bill, Huge Arms And A Hump

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Workers at the National Geographic Museum in Washington grind the rough edges off a life-size replica of a spinosaurus skeleton. Mike Hettwer/National Geographic hide caption

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Crocodile Meets Godzilla — A Swimming Dino Bigger Than T. Rex

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An artist's image of Nasutoceratops titusi. Lukas Panzarin for the Natural History Museum of Utah hide caption

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Newly Discovered Dinosaur Sure Had One 'Supersize Schnoz'

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