WASHINGTON (Reuters) - In the aftermath of the asteroid impact 66 million years ago that doomed the dinosaurs, it appears that brawn was more important than brains for the mammals that managed to ...

The evolution of ankle and foot bones into different shapes and sizes helped mammals adapt and thrive after the extinction of the dinosaurs, a study suggests. A surge of evolution following the mass ...

Learn how newly discovered Purgatorius fossils in Colorado’s Denver Basin are filling gaps in the Paleocene fossil record and ...

About 55 million years ago, the Northern Hemisphere was the site of a major evolutionary makeover: Modern groups of mammals like the ancestors of the horse, deer, goats, primates, and opossumlike ...

(CN) — Researchers at the University of Colorado in Boulder identified three new species of prehistoric mammals through fossils that enhance scientific understanding of how quickly mammals evolved ...

Mammals have the largest brain to body size ratio among vertebrates, but how did this unprecedented encephalization emerge during their evolution? A new study by Ornella Bertrand and colleagues ...

Studying ancient mammals helps scientists understand how life evolved and adapted over millions of years. Fossil discoveries provide valuable insights into extinct species, revealing their behaviors, ...

It may have been the smart evolutionary strategy during a chaotic chapter of Earth’s history, but it didn’t last. By Jack Tamisiea Mammals are the brainiacs of the animal world. The brain of the sperm ...

Many of the mammals that emerged right after the non-avian dinosaur extinction were hearty creatures, as exemplified by Ernanodon, a beast described in the latest issue of the Journal of Vertebrate ...

Researchers report the discovery of several sets of fossilized tracks, likely from the brown bear-sized Coryphodon, that represent the earliest known evidence of mammals gathering near an ocean. Today ...

The evolution of ankle and foot bones into different shapes and sizes helped mammals adapt and thrive after the extinction of the dinosaurs, a study suggests. The evolution of ankle and foot bones ...