Irritator challengeri Gorgosaurus its ability to run at

its ability to run at high speeds allowed it to chase and capture prey

Investigation of the fossils of Tupuxuara and other pterosaurs has provided valuable information about how these animals adapted to life in the air and how they evolved to become the large predators that they were

Tylosaurus had four well-developed fins that acted as oars for swimming in the sea

with an estimated weight between 1

Irritator challengeri Gorgosaurus its ability to run atIrritator challengeri is a genus of spinosaurid theropod dinosaur that lived during the Early Cretaceous Period, approximately 110 million years ago, in what is now Brazil. Its name comes from the Latin "irritator", in reference to the frustration of paleontologists upon discovering that the original fossil had been altered with plaster by the collectors who found it, and "challengeri" in honor of Professor Challenger, a fictional character created by