Ursus minimus—presumed to be the common ancestor of most modern bear species—lived in Europe between approximately 4.9 ...

The shift from lizard-like sprawl to upright walking in mammals wasn’t a smooth climb up the evolutionary ladder. Instead, it was a messy saga full of unexpected detours. Using new bone-mapping tech, ...

This mammal, about the size of an opossum, had a mix of strange characteristics that haven't been seen together before. It highlights evolutionary strangeness that can arise from evolution when it ...

A university student on a fossil-hunting field trip in Dorset made a stunning discovery: a 145-million-year-old jawbone belonging to a previously unknown mammal species with razor-like teeth. With the ...

Paleontologists have found the fossilized remains of the oldest dome-headed dinosaur ever discovered.