Fossils show dinosaurs rose gradually: study
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Fossils found in the United States show dinosaurs lived along side their ancestors for tens of millions of years, disproving long-held theories assuming they quickly replaced their predecessors, according to a new study.
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CLEVELAND - A new dinosaur species was a plant-eater with yard-long horns over its eyebrows, suggesting an evolutionary middle step between older dinosaurs with even larger horns and the small-horned creatures that followed, experts said.
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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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Dinosaurs bred as early as age eight, long before they reached adult size and maturity, fossil evidence suggests.
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The fossilized remains of six young  dinosaurs found together in a &quot;nursery&quot; at a site in China show  these animals had started forming social groups much earlier  than previously thought, scientists said on Thursday.
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A new fossil of a juvenile dinosaur that lived 140 million years ago is shedding light on how the ancient reptiles grew from youngsters to enormous adults.
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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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Palaeontologists have fired a broadside over a fossil which is the cornerstone evidence to back the theory that birds descended from dinosaurs.
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Were early mammals timid creatures suitable only for eating? Not all of them, suggest two remarkable fossils from China
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Computer analysis of an African fossil indicates that a human-like creature walked upright six million years ago&#151;the earliest evidence of bipedalism found to date.
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Scientists have found the remains of a dinosaur in a fossilized mammal's stomach, a discovery that upends decades of scientific belief about the relationship between dinosaurs and mammals.
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A fossil of a gliding animal shows that mammals experimented with flight around when birds first took to the skies.
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Tyrannosaurus Rex grew incredibly fast during a teenaged growth spurt that saw the dinosaur expand its bulk by six times, but the fearsome beasts "lived fast and died young," researchers said on Wednesday.
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RIO DE JANEIRO, Brazil  - Scientists have found  well-preserved fossils of a new dinosaur species that lived 225  million years ago in southern Brazil but had its closest  relatives in what is now Europe, Brazilian paleontologists said  on Thursday.
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New research reveals the Bristol dinosaur lived on small subtropical islands and not in a desert environment as first thought.
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Two new fossilized pterosaur eggs have been discovered. The fossils suggest that the dinosaur-era flying reptiles lived in colonies and raised their young, experts say.
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The mystery of whether dinosaurs were indifferent parents or cared for their young may have been solved by a discovery in China. More than 100 million years ago an adult dinosaur was buried