Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 ...

Palaeognaths include emus and ostriches, and can reach 9 feet tall and weigh upwards of 300 pounds. They are more known for their brawn than their brains and often rely on their running speed and ...

Fossils are providing more and more clues about how dinosaurs attracted one another and reproduced, which contributed to their remarkable ability to populate much of the Earth ...

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But if the dinosaurs had been so successful prior to Chixculub, why did they never re-evolve? Evolution is a complex process ...

Now Brusatte and other paleontologists are trying to determine exactly how feathered dinosaurs achieved powered flight and became the birds that fly overhead today – an evolutionary mystery that ...

A quail-size fossil uncovered in China suggests birds evolved millions of years earlier than previously thought.

Feathers, however, predate birds—having first belonged to extinct dinosaurs. Finding out exactly when feathers evolved, and which animals had them, could offer important new insights into the ...

Scientists discovered two Jurassic bird fossils in China, pushing back bird diversification by 20 million years. One, ...

A 2023 study found that "neither troodon nor any other dinosaur could have begun a primate-like lineage that evolved to a human level of intelligence." That said, modern-day birds show that ...