The new research is the first to look back at early mammals in full color. Using advanced fossil imaging methods and a ...

Mammals live all across the world. They can be found living in the ground, in trees, and even in the sea. There are many different kinds of mammal, including us humans! Find out more about ...

The ear bones of mammals were once the jaws of prehistoric reptiles. And so on. Despite these differences, all mammals share four traits that are shown in the diagram below: hair, mammary glands ...

Our earliest mammalian ancestors avoided the dominant dinosaurs by only coming out at night and having uniformly dark, ...

Deep in their bones, all mammals are related. The earliest known mammals were the morganucodontids, tiny shrew-size creatures that lived in the shadows of the dinosaurs 210 million years ago.

Yes, all mammals are warm-blooded, but not all of them can be as big or ferocious as a lion. In fact, all five of these smallest mammals in the world clock in at about 1 ounce or smaller ...

During the age of dinosaurs, early mammals probably lacked the stripes and spots of their modern relatives, having uniformly dark, drab coats.

Scientists have discovered 280 million-year-old fossil remains of a predator that gave rise to all mammals. This ancient animal, which does not yet have a species name, is the member of an ...