Ancient mammals that lived in the time of dinosaurs were mostly the same dark-brown colour, according to a new study providing clues about how those mammals evolved as they faced giant predators. The ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

A team of paleontologists working near Rangely, Colorado, has uncovered a new (or, more accurately, very old) state resident—a fossil mammal about the size of a muskrat that may have scurried through ...

RANGELY, Colo. — University of Colorado Boulder announced Wednesday that a team of paleontologists working in the northwest corner of Colorado have discovered a "swamp dweller" that was alive during ...

A microbiologist named João Pedro de Magalhães has proposed the idea that the reign of dinosaurs forced mammals to speed up their reproductive cycle, eliminating key longevity genes. de Magalhães ...

While many dinosaurs and pterosaurs flaunted flamboyant feathers, early mammals were a dull lot. A study of the fossilised fur of six mammals that lived during the Jurassic and Cretaceous periods has ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. NEW YORK (AP) — An unusual find in China ...

One of the tiny mammals, Agilodocodon scansorius, was arboreal and had long claws and sharp, gnawing teeth. It is considered the earliest tree-living mammal yet found. The other, Docofossor ...

WASHINGTON (Reuters) - A stoutly built mammal cousin the size of an elephant that munched on plants with its horny beak roamed the European landscape alongside dinosaurs during the Triassic Period ...

DENVER (KDVR) — Researchers at the Denver Museum of Nature and Science discovered a new mammal species from 65 million years ago. A fossil of a skull and jaws of the newly discovered species were ...