When the big asteroid hit Mexico 66 million years ago, it set off wildfires, tsunamis and massive clouds of dust that darkened the skies, killed much of Earth’s plant life and triggered a chain of ...
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Scientists thought dinosaurs moved alone, but new footprints found in Alberta say otherwise
Fossil footprints discovered in Alberta show that several dinosaur species crossed the same area within a limited time span. The site includes tracks from herbivores and large predators, preserved in ...
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