Giganotosaurus: A Larger Predator Than T. Rex

Giganotosaurus, discovered in Argentina, was the apex predator of mid-Cretaceous South America. Estimated to reach lengths of 13 meters, it was slightly larger than T. rex but may have been somewhat lighter. Its skull measured up to 1.8 meters long, with blade-like teeth designed for slicing flesh rather than crushing bone. This suggests a hunting strategy distinct from T. rex: Giganotosaurus likely targeted large sauropods with repeated bites to inflict bleeding wounds, rather than delivering a single fatal strike. Fossil sites near its discovery location have yielded remains of multiple individuals, sparking debate over whether they hunted in groups. Some paleontologists propose that Giganotosaurus formed loose packs to take down massive titanosaurs.