“And then you have the Spinosaurus which was type of odd in basic,” Rowe states. “There was a research study by Dave Hone and Tom Holtz about how it was waiting on the coastlines, awaiting food to pass that it might fish out.” Spinosaurus’ foraging wasn’t restricted to fishing. There was a pterosaur discovered protected in its stomach and there were iguanodon stays discovered in the maw of a Baryonyxanother big predator coming from the very same family tree as the Spinosaurus“They had fantastic variety in their diet plan. They were generalists, however our outcomes reveal they weren’t these enormous bone-crunching predators like the T. rex,” Rowe states. Due to the fact that the T. rex was simply constructed various.

King of the Cretaceous jungle

The Tyranosauroidea family tree had stiff, akinetic skulls, indicating they had extremely little movement in the joints. The T. rex skull might and probably did endure extremely high tension as the animal pursued a “high tension, high power” technique, completely various from other big predators. “They were quite like huge crocodiles with exceptionally strong, enhanced jaws and effective muscles that might crush bones,” Rowe claims.

The T. rexhe argued, was a professional– an ambush predator that assaulted big, extremely mobile victim, intending to control it with a single bite. “And we have fossil proof of that,” Rowe states. “In the Museum of Natural History in New York, there is a Hadrosaura big herbivorous dinosaur with a duck-like beak, and there’s a T. rex tooth ingrained in its back.” This, he believes, indicates the T. rex was actively victimizing this animal, particularly because there are recovery marks around the stuck tooth. “Even with this very strong bite, the T. rex wasn’t constantly effective,” Rowe includes.

Still, the battle with the Spinosaurus more than likely would not go the method it performed in Jurassic Park III“The T. rex was constructed to eliminate like that; the Spinosaurus truly wasn’t”, Rowe states.

Present Biology, 2025. DOI: 10.1016/ j.cub.2025.06.051