A dinosaur dubbed one of the "strangest" ever found boasted an elaborate armory of long bony spikes and a tail weapon, according to findings published in the science journal Nature. Spicomellus, which ...

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

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 before going extinct.