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Comparative Anatomy

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

Fossil Brain Scans Point to Rapid Origin of Pterosaur Flight

CT brain scans indicate visual-system upgrades preceded powered flight in the pterosaur lineage.

Fossil Endocasts Show Pterosaurs Evolved Flight-Ready Brains Independently of Birds

Study Reveals Woodpeckers Sync Each Strike With a Breath to Act Like Hammers

Study Recasts Ardi’s 4.4-Million-Year-Old Ankle, Blending Ape-Like Climbing With Early Bipedal Traits

Digits May Have Evolved by Repurposing Cloacal DNA, Nature Study Finds

Study Pinpoints Two Embryonic Shifts That Shaped the Human Pelvis for Bipedalism

Researchers Uncover Intestinal Cells That Fully Digest Python Prey Skeletons

Study Confirms Teeth Evolved from Sensory Armor of Ancient Fish