Human history is often marked by unexpected feats of exploration that challenge long-held assumptions about our ancestors. Some of those ancestors were far more adventurous than they have been given ...

In 1879, a landowner and amateur archaeologist named Marcelino Sanz de Sautuola ventured into a newly discovered cave system in northern Spain. Hoping to find prehistoric tools, he kept his eyes fixed ...

A million-year-old human skull suggests that the origins of modern humans may reach back far deeper in time than previously thought and raises the possibility that Homo sapiens first emerged outside ...