Humans are far more monogamous than our primate cousins, but less so than beavers, a new study suggests. Researchers from the University of Cambridge in England analyzed the proportion of full ...

A new study found 332 types of complex sugar molecules in the seals' milk, some of which help protect young from harmful ...

Mammals have been discovered to have a secret superpower: nearly all species glow in the dark. Before now, it was thought that only Australian marsupials such as platypuses, wombats, Tasmanian devils ...

Despite not being particularly mammal-looking, the earliest true mammals began to rise about 200 million years ago, when dinosaurs were still roaming Earth. However, the therapsids still had important ...

Two brand-new species of early mammals from the Jurassic period have been discovered, revealing the secrets of how we got our ears. These new species are hoped to give paleontologists insight into how ...

The most intriguing fossils tell a story about the animal’s life, or where and how it lived, and paleontologists have now uncovered a doozy. The fossils of a dinosaur and a small mammal have been ...

Fossil skulls reveal how extinct mammals smelled the world, with new research linking olfactory bulb size to gene counts.

By monitoring the movement, health, and environmental conditions of thousands of animals at once, Project ICARUS hopes to solve scientific mysteries.

Scientists have discovered the fossil of a tiny mouse-sized mammal that lived in the time of the dinosaurs in Chilean Patagonia. "Yeutherium pressor" weighed between 30 and 40 grams (about one ounce) ...