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New research reveals that dinosaurs were thriving across diverse ecosystems until a sudden asteroid impact ended their reign 66 million years ago. “The Naashoibito dinosaurs lived at the same time as ...

Researchers analyzed fossils of the Alamosaurus found in northwestern New Mexico and discovered these dinosaurs were very different but the same age as dinosaurs found further north in Wyoming and ...

Dinosaurs liked it rough — and the fossils they left behind prove it. Top paleontologists have discovered that mating between some species of prehistoric behemoths was so violent that they literally ...