Taxonomy Birds Extinct Species Homo Juluensis Hominin Diversity Avialae Genus and Species Ecological Adaptation Pseudosuchia Nanotyrannus Tyrannosaurini Herbivorous Amphibians Anatomy Spinosaurids Mammoth Species Corvidae Dinosaurs Machine Learning Mosasaur Family Tree Tyrannosaurus rex Species Complex Dinosaur Diversity Gorgonopsia New Species Paleontological Research Dinosaur Evolution Genus
Modern imaging and cross-collection comparison show it was an apex, possibly partly aquatic predator that challenges oxygen-based explanations for arthropod gigantism.