Researchers at the University of Michigan have discovered that the constant gnawing of rodents isn't just a reflex or a consequence of a tough diet. It also triggers a release of dopamine in the brain ...

The giant anteater is one of those animals that almost looks designed by imagination rather than evolution. With its elongated snout, sweeping bushy t.

A plantation worker photographed this new genus of mammal in New Guinea, thought to have been dead for 6,000 years.

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

Three tiny Purgatorius teeth found in Colorado are helping scientists trace how early primates evolved and spread across North America.

Tiny fossil teeth from Colorado are revealing new clues about the very first relatives of primates, including humans.

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 ...

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 picture biodiversity, they often ...

Researchers found that stem cells derived from human baby teeth improved motor skills, learning and brain repair in rats with ...

Tiny, tooth-sized fossils have just reshaped the story of our deepest ancestry. Paleontologists have discovered the southernmost remains ever found of Purgatorius—the earliest-known relative of all ...