New research suggests that dinosaur populations were thriving in North America before the asteroid impact 66 million years ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, ...

New dating has revealed that New Mexico's last dinosaurs were healthy, diverse and thriving at the end of the Cretaceous ...

For decades, many scientists believed dinosaurs were already dwindling in number and variety long before an asteroid strike ...

A new study sheds light on how these reptiles become “mummies” and paints a picture of what these ancient animals looked like ...

A trove of specimens from New Mexico may help settle a long-running argument about the diversity of dinosaurs before their ...

The end of the dinosaurs was clearly linked to an asteroid impact that brought the Cretaceous period to a close. But the ...

A fossil site in New Mexico with numerous dinosaurs, including the gargantuan Alamosaurus, dates to shortly before the ...

A fresh analysis of a site in New Mexico provides a glimpse into the final days of the dinosaurs, showing their diversity ...

Of all the mysteries surrounding dinosaurs, none has sparked more debate than how their era ended—was it a gradual decline or ...