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Scientists Measured T. Rex Body Temperature at About 36.3°C Using Its Teeth

The result implies mammal‑like thermoregulation that would raise metabolic needs and broaden the dinosaur’s viable range across Late Cretaceous North America.

T. Rex Ran at Human‑Like Body Temperature, Tooth Study Shows

Chunky Jurassic Belemnite Wyoteuthis linsterorum Described from Wyoming

Ancient 'American Cheetah' Is a Puma Relative, Genomes Show

CT Scans Show Dodo Had Normal Brain Size and Unusual Senses

New Cretaceous Bird Plumadraco Has Tail Feathers Twice Its Body Length

Scientists Name Giant Texas Mosasaur Tylosaurus Rex

Mummified Permian Reptile Reveals Oldest Rib-Powered Breathing System

New Triassic Croc-Line Reptile Grew From Four-Legged Juvenile to Bipedal Adult

Reanalysis of Lost WA Fossils Splits Iconic Triassic Amphibian Into Two Species

New Dinosaur With Hollow Skin Spikes Identified in China

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

Archaeopteryx Fossil Reveals Bird-Like Mouth Features Linked to Flight Demands

New Study Finds T. Rex Reached Full Size Around Age 40

New Study Recasts Dunkleosteus as Cartilage-Heavy, Shark-Like Oddball

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

Hornless ‘Arctic Rhino’ Identified in Canada’s High Arctic Challenges Long-Held Dispersal Timeline

Study Finds Hippos Endured in Central Europe Until 31,000 Years Ago

New Iguanodontian Cariocecus bocagei Described From Portugal After Micro‑CT Skull Study

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