Fossils reveal dinosaurs were flourishing in diverse ecosystems right up until the asteroid impact ended their reign. Their abrupt extinction reshaped Earth’s ecosystems and set the stage for mammals ...

Pioneering techniques used in this research may soon be applied to other dinosaur fossils and alter the course of ...

Scientists believe they now know the true lifespan of the Tyrannosaurus rex, rewriting what was known about the ancient ...

About 66 million years ago, these two duck-billed dinosaurs, known as Edmontosaurus annectens, were preserved via an ...

By applying computational engineering methods to model weight and gravitational forces acting on sauropod femurs, researchers found that these massive four-legged dinosaurs were generally able to stay ...

Wikipedia had to fight to establish its legitimacy—and now it faces a new existential threat posed by generative AI ...

A fossil of Manipulonyx reshetovi, found in a Mongolian desert, shows how the dinosaur used its specialized claw to snatch ...

The Gulf of Mexico covered the gently sloped sand hills of lower Arkansas until about 50 million years ago. The Ouachita orogeny--the collision that pushed up what we know, in eroded form, as the ...

Whatever happened to the duck-billed dinosaur, it was a real pain in the butt. Many of the spines sitting atop the animal’s tail vertebrae had been fractured. The dinosaur, known as Olorotitan to ...

For 162 million years, sturgeons have fended off everything they’ve faced. Now scientists are racing to save these living fossils. The white sturgeon is the largest freshwater fish in North America; ...

Scientists have discovered an enormous species of duck-billed dinosaur that lived in what is now New Mexico about 75 million years ago. The dinosaur, Ahshislesaurus wimani, likely had a flat head and ...