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 ...

The discovery of new cynodont fossils from southern Brazil by a team of palaeontologists has led to a significant breakthrough in understanding the evolution of mammals. These fossils, belonging to ...

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 ...

Mammals feed using a jaw hinge formed by dentary and squamosal bones. Fossil evidence reveals that this type of joint evolved independently in an extinct species of mammalian relatives called ...

A fossil in South Africa is evidence that therapsids, one of our ancestors, were laying eggs 252 million years ago. You can’t make a mammal-ette without laying some eggs. The duck-billed platypus wasn ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Two brand-new species of early mammals from the Jurassic period have ...

The Museum of Discovery and Science is opening a new family-friendly exhibit featuring the rise of mammals. The latest exhibit at the museum is called “Expedition: Dinosaur — Rise of the Mammals.” The ...

You can’t make a mammal-ette without laying some eggs. The duck-billed platypus wasn’t the only mammal to lay eggs. Analysis of a fossil in South Africa proves that our mammalian ancestors were ...