Some 30 million years ago, during what’s known as the Oligocene Epoch, a leopard-like hypercarnivore—that is, an animal whose diet is at least 70 percent meat—stalked the lush forest of Fayum, Egypt.

The largest land mammal to ever live on Earth had unique features, combining the traits of both rhino and giraffe. The creature, now extinct, is known as Paraceratherium, according to IFLScience. They ...

A new genus of tiny, hornless deer that lived in South Dakota during the Oligocene Epoch approximately 32 million years ago has been discovered by a team of researchers from Badlands National Park, ...

The research on fossil remains of a new genus of tiny, hornless deer that lived in South Dakota about 32 million years ago, during the Oligocene Epoch, was published this week in the Proceedings of ...