Fierce mammal ate dinos for lunch
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An astonishing new fossil uncovered in a remote region of China has overturned accepted views of the relationship between dinosaurs and early mammals.
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The dinosaurs might have gone out with a sudden bang, but their rise to dominance was a gradual ascent, experts say.
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Fossilized foot marks left by a big  meat-eater on a lake bed in northern Spain 125 million years  ago provide strong evidence that at least some dinosaurs were  good swimmers, scientists said on Thursday.
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Two major classes of dinosaurs show genomes distinctly aligned with modern birds, reptilesCAMBRIDGE, Mass.
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New analysis of bones from an infamous dinosaur long believed to have eaten its own young show that the animal may have been given an undeserved reputation.
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Fossils of ancient marine reptiles that lived 230 million years ago show the prehistoric creatures gave birth to live young, scientists said on Wednesday.
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Fossils from two newly discovered  meat-eating dinosaurs that lived in the Sahara Desert 110  million years ago paint a fearsome picture of life in Africa's  Cretaceous period, which appears to have been teeming with  unusual carnivores.
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Science & environment: Fearsome dinosaur made famous in the Jurassic Park films probably more closely resembled a big turkey, scientists have discovered.
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A new fossil discovery from China shows that a tiny squirrel-like creature glided through the air during the age of dinosaurs, more than 75 million years earlier than scientists had documented that ability in a mammal.
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Villagers digging in China's rich fossil beds have uncovered the preserved remains of a tiny dinosaur in the belly of a mammal, a startling discovery for scientists who have long believed early mammals couldn't possibly attack and eat a dinosaur.
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Paleontologists say they have discovered the fossil remains of a duck-size dinosaur species, previously unknown to science, that died while catching some z's.
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To the growing evidence that some dinosaurs had feathers, add the family of tyrannosaurs, mighty predators in the age of reptiles.
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The velociraptor, the fierce scaly-skinned dinosaur made popular by the film &quot;Jurassic Park,&quot; actually had feathers, according to a study published Thursday in the journal Science.
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PITTSBURGH - Paleontologists are hailing the discovery by a first-year geology student of a new species of amphibian, a salamander-like creature that lived 300 million years ago.
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An astonishing collection of fossil animals from southern Australia is reported by scientists.
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A re-examination of fossil specimens has disputed the assumption that the dinosaur Coelophysis practiced cannibalism.
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A fossil of a new crab species reveals the itsy-bitsy crustaceans inhabited towering sponge reefs during the Jurassic Period, where they made tasty snacks for ichthyosaurs and other ancient reptiles.