Summary:

- The article discusses the discovery of a new species of dinosaur, Meraxes gigas, which lived around 90 million years ago in what is now Argentina.
- Meraxes gigas was a large carnivorous dinosaur, measuring around 9 meters long and weighing over 4 tons, making it one of the largest known theropod dinosaurs from the Cretaceous period.
- The discovery of Meraxes gigas provides new insights into the evolution and diversity of large predatory dinosaurs in the Southern Hemisphere during the Late Cretaceous period.