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Dinosaurs

The smallest Diplodocus skull ever discovered reveals clues about the group's evolution.

Claire Cleveland, Contributor

Deep water reptiles diversified as Mesozoic sea levels rose. Their shallow water counterparts declined.

Charles Q. Choi, Contributor

The newly dubbed "Amazing Dragon of Lingwu" may have weighed more than 10 metric tons and boasted a dangerous "whiplash tail."

Charles Q. Choi, Contributor

The impact that killed the dinosaurs also caused mass deforestation and sent the first tree-dwelling birds to extinction.

Charles Q. Choi, Contributor

New genetic analysis suggests that major groups of fish species arose in the 10 million years after dinosaurs disappeared.

Charles Q. Choi, Contributor

Fossilized duck-billed dino droppings from Grand Staircase-Escalante National Monument are full of rotten wood and crustaceans.

Nala Rogers, Staff Writer

Analysis of dinosaur fossils showed that some parents warmed their eggs with body heat.

Joel Shurkin, Contributor

Paleontologists have found incredible dinosaur diversity at Grand Staircase-Escalante National Monument. What could nearby Bears Ears hold?

Nala Rogers, Staff Writer

Researchers used light-based technique to examine 195-million-year-old bone's chemical contents.

Charles Q. Choi, Contributor

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