The new research is the first to look back at early mammals in full color. Using advanced fossil imaging methods and a thorough examination of the pigment-producing cells present in living mammals, ...

BOULDER, Colo. — Paleontologists recently discovered a rare mammal fossil in western Colorado. It's a genus of mammal that lived between 70 million and 75 million years ago and has never been seen ...

(BIG BEND NATIONAL PARK, Texas) — Paleontologists have found fossilized remains of a giant possum-like mammal that lived 60 million years ago. The fossils, found at Big Bend National Park in Texas, ...

Scientists announced on March 5, 2026, that they have identified an entirely new genus of mammal called Tous, a group of ...

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 ...

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 ...

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A Museums of Western Colorado volunteer’s discovery in 2018 of a jawbone fragment in a block of sandstone previously collected outside Rangely has contributed to scientists discovering a previously ...

Most mammals wear coats of brown, black, and gray, while parrots flash brilliant reds, reef fish shimmer in electric blue, and chameleons shift between greens and golds. This disparity is not random.

Many mammals have fur the color of brown and black. Why don't they have more exotic colors, like purple and neon pink?

New fossils of a chipmunk-sized animal that lived about 85 million years ago suggest that placental mammals arose much earlier than is generally believed and thrived for millions of years alongside ...

Mammals are not especially diverse. Roughly 6,800 mammal species are known to exist, compared with about 8,800 species of amphibian, 11,000 species of bird and 12,500 of reptile. Yet when most people ...