Mammals Morphology Vertebrates Reptiles Pectoral Fins Facial Muscles Inner Ear Structures Fossils Crocodilians Primate Studies Species Comparison Animal Models Fish Nervous System Structures Segmented Body Plans Skull Morphology Body Size Sharks Digestive Adaptations Brain Size Dentition Body Structures Reptilian Adaptations Primate Species Primates Human vs Primate Anatomy Primate Diets Sex Differences Primate Anatomy Human-Animal Comparisons Hominin Species Flight Mechanisms Avian Skull Flight Mechanics Great Apes Eye Structure Limbs
CT brain scans indicate visual-system upgrades preceded powered flight in the pterosaur lineage.