Tyrannosaurus rex Had Mammal-Like Body Temperature, Study Finds
A new analysis of Tyrannosaurus rex teeth indicates the ancient predator maintained a body temperature of about 36.3 degrees…
Fossil tooth analysis confirms Tyrannosaurus rex was warm-blooded
Fossil tooth analysis confirms Tyrannosaurus rex was warm-blooded Scientists have suspected for nearly 60 years that Tyrannosaurus rex…
Ancient Alligator Relative Lived Right After Dinosaur-Killing Asteroid
Paleontologists have identified a new species of extinct alligatorid that lived in what is now Colorado just a…
Ichthyosaurs Had Surprisingly Dense Ribs, New Study Finds
Long before whales ruled the oceans, dolphin-shaped marine reptiles called ichthyosaurs patrolled the same waters. New research from…
Exceptionally Preserved Bird Feathers Found in 66-Million-Year-Old Dinosaur Coprolite
Paleontologists in Montana have discovered remarkably preserved feathers of an ancient aquatic bird inside a fossilized dinosaur dropping,…
Denisovans Once Roamed Southwest China, New Fossils Reveal
Paleoanthropologists have identified a trove of Denisovan fossils from a cave in China’s Yunnan province, extending the known…
Paleontologists Discover First-Ever Adult Tyrannosaurus rex Trackway
Paleontologists in North Dakota have unearthed a set of 66.5-million-year-old fossilized footprints that can be confidently attributed to…
115-Million-Year-Old Dinosaur Fossil Recovered from Deep Drill Core in China
Scientists have identified the first dinosaur fossil from a remote western section of the Bayan Gobi Formation in…
Ancient DNA Rewrites Story of Enigmatic ‘American Cheetah’
For several decades, paleontologists have described Miracinonyx trumani — an extinct species of cheetah-like felid that roamed the…
Paleontologists Identify New Species of Glyptodont
An incomplete fossilized skull that has sat in the collections of the Natural History Museum of Denmark since…
New Species of Armored Dinosaur Identified in Japan
Cranial fossils of a nodosaurid ankylosaur unearthed more than two decades ago on the Japanese island of Hokkaido…
Anthropologist Proposes Folding Australopithecus and Paranthropus into Genus Homo
Dr. Ian Towle, a researcher with the Biomedicine Discovery Institute at Monash University, proposes folding nearly 5 million…