Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, causing mass extinction. New research suggests dinosaur populations were still ...

The dinosaurs first appeared on Planet Earth around two hundred and forty five million years ago. That's a staggeringly long time in human terms, but geologically, the dinosaurs were effectively ...

Long before the age of giants, the Triassic world belonged to survivors. Herrerasaurus, one of the oldest known dinosaurs, was both predator and prey in an ecosystem dominated by ancient reptiles.

ONE of the worst days in the history of life on Earth started like any other. Herds of hadrosaurs with huge head crests and duck bills roamed ancient New Mexico for plants to eat, making sure not to ...

NEW YORK (AP) — Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type of dinosaur? At first, researchers had only a ...

LAS CRUCES, New Mexico (KVIA) -- Fossils found in New Mexico’s San Juan Basin are reshaping what scientists know about the final days of the dinosaurs. A research team led by New Mexico State ...

You might not think a paleontologist looking for 66-million-year-old fossils would need to ask a rancher about his great-grandmother's job in the Wyoming badlands. But that's what Paul Sereno, a ...

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