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Reptiles

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Cretaceous Skull Reveals Earliest Head‑First Burrowing Snake

Brain and bone evidence indicate a head‑first digging lifestyle that points to independent habitat experiments early in snake evolution.

Scientists Name Labrujasuchus expectatus, a Two‑Legged, Beaked Croc Relative from Ghost Ranch

Researchers Name Giant Mosasaur Tylosaurus Rex After Museum Re‑examination

Ventura County Logs Seventh Rattlesnake Bite Since March as Hiker Airlifted From Simi Valley Trail

Mummified Permian Reptile Reveals Oldest Rib-Powered Breathing System

Python Metabolite Reveals New Appetite-Suppressing Pathway in Mice

New Species Crocodylus lucivenator, Likely Predator of 'Lucy,' Described From Ethiopia

Haolong dongi Fossil Reveals Cellular-Level Skin and Unique Cornified Spikes

Florida Warns of Falling Iguanas as Freeze Grips the State

Nat Geo Premiere Reveals 2022 Amazon Anaconda Discovery and Pollution Warning

Anacondas Have Stayed Giant for 12 Million Years, Fossil Study Finds

Sea Turtle Hatchlings ‘Feel’ Earth’s Magnetic Map, Study Finds

New Middle Triassic Crocodile-Line Predator, Tainrakuasuchus bellator, Described From Brazil

Study Reveals Coiled Optic Nerves Behind Chameleons’ Independent Eye Control

Study Finds Reptile Urates Are Uric Acid Microspheres That Lock Up Ammonia

Jurassic 'False Snake' From Skye Described as New Species, Complicating Snake Origins

Study Finds Mamba Venoms Trigger Two Types of Paralysis, Exposing a Critical Antivenom Gap

Oldest Known Lepidosaur From 242 Million Years Ago Recasts Early Lizard Evolution

Scientists Describe Kostensuchus Atrox, a Dinosaur‑Eating Croc Relative From Patagonia

15-Year Study Finds Fragmented Habitats Driving Inbreeding in Michigan’s Rattlesnakes