Science ❯ Biology ❯ Zoology

Vertebrates

Fish Reptiles Dinosaurs Tetrapods Amphibians Pterosaur Anatomy Synapsids Museum Specimens Fluid-Preserved Specimens Animal Anatomy Behavior Fishes Mammals Early Land Animals Amniotes Pterosaurs Zebrafish Armored Dinosaurs Ankylosaurs Dinosaur Anatomy Placoderms Flying Vertebrates Jawed Vertebrates Flying Reptiles Tetrapod Development Eye Evolution Eye Structure

10 ARTICLES

4mo ago

Fossil Hatchlings Show Early Tetrapods Grew Up Without Tadpole Metamorphosis

New fossil analyses suggest direct development across multiple stem tetrapod lineages, pointing to a later or independent origin of amphibian-style metamorphosis.

4 ARTICLES

9mo ago

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

4 ARTICLES

last yr.

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

5 ARTICLES

last yr.

Bistable Toggle Organizes Progenitor 'Neighborhoods' to Sustain Olfactory Neurogenesis

27 ARTICLES

last yr.

Oldest Ankylosaur Revealed With Meter-Long Neck Spikes and Early Tail Weapon

9 ARTICLES

last yr.

Study Confirms Teeth Evolved from Sensory Armor of Ancient Fish

Vertebrates

Fossil Hatchlings Show Early Tetrapods Grew Up Without Tadpole Metamorphosis

Study Ties Burst of Gene Isoforms to the Dawn of Vertebrates

Ordovician Mass Extinction Set the Stage for the Rise of Jawed Fishes

Fossil Brain Scans Point to Rapid Origin of Pterosaur Flight

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

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

Bistable Toggle Organizes Progenitor 'Neighborhoods' to Sustain Olfactory Neurogenesis

Oldest Ankylosaur Revealed With Meter-Long Neck Spikes and Early Tail Weapon

Study Confirms Teeth Evolved from Sensory Armor of Ancient Fish