Most dinosaurs suddenly went extinct about 66 million years ago after an asteroid struck Earth. You can see evidence of this impact at the Chicxulub crater on the Yucatán Peninsula in Mexico ...

The dinosaur, named Duonychus tsogtbaatari, measured about 10 feet (3 meters) long, weighed approximately 575 pounds (260 kg) and lived roughly 90 to 95 million years ago during the Cretaceous Peri… ...

Based on the geographic distribution and morphological similarities between Khankhuuluu and other tyrannosauroids, the study proposes that mid-sized dinosaurs like Khankhuuluu initially spread ...

Bolg 's remains were discovered in Utah in the United States, dating back about 76 million years, during the tail end of the dinosaurs ' reign. Intriguingly, however, its closest known relative ...

University of Birmingham. "The 10,000-mile march through fire that made dinosaurs possible." ScienceDaily. ScienceDaily, 13 June 2025. <www.sciencedaily.com / releases / 2025 / 06 / 250613013903.htm>.

Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 million to 230 million years ago in the Triassic Period, and went ...