Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact periods in history when it happened are less well known. Was it a single ...

A newly described dinosaur that appears to have persisted beyond a catastrophic die-off is forcing scientists to rethink how mass extinctions actually play out on the ground. Instead of a clean break ...

For a long time, the prevailing theory was that dinosaurs were already in decline before the Chicxulub asteroid struck Earth approximately 66 million years ago, leading to the extinction of about 70% ...

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Roughly 201 million years ago, the Triassic-Jurassic extinction event wiped out about 76% of all marine and land species on Earth. This cleared the stage for dinosaurs to take over for the next 135 ...

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 ...