Tyrannosaurus rex is undoubtedly one of the most famous dinosaurs. Whether it was the largest amongst the meat-eating theropods, however, is questionable and often part of intense debate. Based on the ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, causing mass extinction. New research suggests dinosaur populations were still ...

WASHINGTON (Reuters) - A fossil site in New Mexico with numerous dinosaurs, including the gargantuan Alamosaurus, dates to shortly before the asteroid strike that abruptly ended the age of dinosaurs, ...