Meet Mapusaurus roseae, the largest carnivore on Earth recorded to date. Paleontologists working in the Patagonian wilderness in Argentina who found the remains of the 41-foot long and 15,000-pound ...

At a news conference in the western Patagonian city where the news species was found, paleontologists have unveiled what may be one of the largest carnivorous dinosaurs known -- Mapusaurus roseae.

Fossil hunters in Patagonia have unearthed the remains of more than a half-dozen gigantic dinosaurs that appear to have lived and hunted in a pack. Mapusaurus roseae was bigger than Tyrannosaurus rex ...

Giant predatory dinosaurs may have hunted in packs to bring down the biggest plant-eating prey. The evidence comes from the first detailed analysis of the remains of giant predatory dinosaurs ...