Argentine scientists unearthed a new megaraptoran dinosaur species, Joaquinraptor casali, from the Lago Colhué Huapi formation. This relatively complete skeleton, dating back 66-70 million years, reveals unique features. The discovery includes arm, leg, and tail bones, and a partial skull. Analysis suggests it used its powerful claws for hunting, unlike the T. rex's tooth-based predation. The find helps fill gaps in our understanding of megaraptoran evolution and their role as top predators in the Cretaceous period.

Prepared by Olivia Bennett and reviewed by editorial team.