A discovery about the dark fur of early mammals confirms long-held theories about their evolutionary and ecological behavior.

Using their monochrome coats as camouflage, these mammals blended into the shadows to avoid being eaten by dinosaurs at night ...

Newly analyzed fossil skeleton of Mixodectes pungens reveals its tree-dwelling lifestyle, dietary habits, and ties to ...

This schoolyard boulder with ancient footprints is revealing a vibrant moment in Australia's prehistoric past.

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

Some were the size of a dog. Others were as large as polar bears. A newly-discovered fossil of the ferocious hyaenodont is helping scientists understand a little bit more about the mysterious ...

Ancient mammals that lived in the time of dinosaurs were mostly the same dark-brown colour, according to a new study providing clues about how those mammals evolved as they faced giant predators.

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

Some animals have been around since the time of the dinosaurs—and they’re still thriving today! Known as “living fossils,” ...

This is fantastic work,” he adds. The first mammal-like animals emerged alongside dinosaurs in the Mesozoic Era, aptly known as “the Age of Reptiles.” Based on fossilized bone and skeletal ...