While the great Tyrannosaurus rex stalked prehistoric North America, a very different apex predator prowled ancient Argentina: the newly discovered megaraptor Joaquinraptor casali. When ...

Fossils of one of the last remaining megaraptors, a carnivorous dinosaur with claws more than a foot in length, have been discovered in Argentina. The discovery was made in Patagonia and is believed ...

You might think that the age of dinosaurs is set in stone, like the fossils they left behind, but paleontologists uncover new species and make new discoveries practically every day. Recently, ...