A new study reveals the surprisingly convergent evolution in the inner ear of mammals. An international research team showed that a group of highly divergent mammals known as Afrotheria and distantly ...

The definition of a mammal is a warm-blooded vertebrate animal distinguished by the possession of hair or fur, the secretion of milk by females for nourishing their young, and the birth of live ...

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 ...

Mammals, including humans, stand out with their distinctively upright posture, a key trait that fueled their spectacular evolutionary success. Yet, the earliest known ancestors of modern mammals more ...

Illustration showing Repenomamus robustus as it attacks Psittacosaurus lujiatunensis moments before a volcanic debris flow buries them both, ca. 125 million years ago. (Michael Skrepnick via ...

A large-scale analysis of 117 mammal species found that preventing reproduction is associated with longer lifespans, suggesting a strong link between reproductive activity and life expectancy. Why do ...

If you liked this story, share it with other people. At the turn of this century, seeing a wild jaguar was exceptionally difficult. People driving through the Jaguar Ecological Reserve in the Pantanal ...

Dinosaurs so thoroughly dominated the ancient world that they suppressed the evolutionary possibilities open for mammals. This notion has been around for decades now, and it seems to be backed up by ...

When you think about the Jurassic Period, you probably think of massive, lumbering dinosaurs. But now scientists say there were also gliders — early relatives of mammals, akin to today's flying ...