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Dinosaurs: Facts about the reptiles that roamed Earth more than 66 . . . Discover interesting facts about when dinosaurs lived, why they died and how big they got Dinosaurs: News, features and articles | Live Science Sink your teeth into extraordinary dinosaur discoveries with the latest dinosaur news, features and articles from Live Science A brief history of dinosaurs - Live Science The history of dinosaurs encompasses a long time period of diverse creatures This piece of art is a reconstruction of a late Maastrichtian (~66 million years ago) paleoenvironment in North Nanotyrannus isnt a mini T. Rex after all - Live Science An argument over whether fossils from several small dinosaurs represent a juvenile Tyrannosaurus rex or smaller adults of a separate species may finally be settled Mysterious runner dinosaur a sign there are more Jurassic secrets to . . . The discovery of Enigmacursor mollyborthwickae, a dog-size "runner" dinosaur, has left researchers re-evaluating Nanosaurus and several other US dinosaurs from the Morrison Formation in Colorado What was the typical life span of a dinosaur? - Live Science What was the typical life span of a dinosaur? It depends on the size and species, of course Heavy rains expose one of the oldest dinosaur skeletons ever discovered . . . Researchers say they've recovered one of the world's oldest known dinosaurs after heavy rains exposed a Herrerasaurid skeleton in southern Brazil T. rex relatives moonwalked to attract mates, newfound dinosaur . . . Researchers have identified a "mating arena" at Dinosaur Ridge where male theropods gathered during the Cretaceous period to display in front of females