Spinosaurus, the only known semiaquatic dinosaur predator, joins Tyrannosaurus, Giganotosaurus and Carcharodontosaurus among the largest meat-eating dinosaurs.
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Fossil hints sea monster roamed beyond the ocean
New fossil discoveries are forcing scientists to redraw the boundaries of ancient oceans, suggesting that some of the most formidable marine predators did not always stay at sea. From gigantic ...
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