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Dinosaurs

New study reveals how baby hoatzin birds are able to move like four-legged animals, thanks to unique claws on their wings.

Nala Rogers, Staff Writer

Two well-preserved fossils found in China were covered in both furlike pycnofibers and featherlike features.

Charles Q. Choi, Contributor

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

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