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The massive rock that smashed into Earth 66 million years ago killed off many dinosaur species, but the animals were in steady decline for millennia before the cataclysm, researchers report.

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image: Brains Before Brawn

Brains Before Brawn

By | March 16, 2016

A newly described horse-size relative of Tyrannosaurus rex may help settle the question of how massive carnivorous dinosaurs took shape throughout the eons.

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image: A Beast from the East

A Beast from the East

By | December 2, 2015

Researchers unearth a dog-size, horned dinosaur from eastern North America, whose features suggest evolutionary isolation from western dinos.

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image: Taking a Dino’s Temperature

Taking a Dino’s Temperature

By | October 15, 2015

Researchers develop a method for estimating the body temperatures of long-extinct species, and suggest that dinosaurs operated somewhere between endothermy and exothermy.

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image: Polar Dino Discovered

Polar Dino Discovered

By | September 28, 2015

Researchers working in Alaska, above the Arctic Circle, have unearthed the northernmost species of dinosaur ever found.

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image: Color Clues in Dino Fossils

Color Clues in Dino Fossils

By | August 31, 2015

Researchers confirm that some microscopic imprints in fossilized dinosaur feathers are pockets of melanin.

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image: Saw-toothed Dinos

Saw-toothed Dinos

By | July 29, 2015

Microscopic analysis of carnivorous dinosaur teeth reveals specialized serrated edges.

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image: “Feathered Poodle From Hell” Dino Found

“Feathered Poodle From Hell” Dino Found

By | July 20, 2015

A newly discovered relative of Velociraptor had abundant plumage and birdlike wings.  

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image: <em>Triceratops</em> Kin Found

Triceratops Kin Found

By | July 9, 2015

Researchers unearth an evolutionary cousin of the iconic three-horned dinosaur, and the new species is one of the oldest known members of the taxonomic family.

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Researchers report finding evidence of red blood cells and proteins in 75-million-year-old dinosaur fossils.

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