Just three years ago, a group of Idaho men traveled to an unnamed Western state and in an unnamed range of rugged mountains, hiked up a steep trail. At the top, they unraveled climbing ropes, stepped ...

(via PBS Terra) Below the Chihuahuan Desert in southeastern New Mexico, lies an extensive system of limestone caves, among them the pristine Lechuguilla Cave and the famed Carlsbad Cavern, home to one ...

Fossils are the backbone—oftentimes literally—of researching the far past. And because most of human evolution took place throughout Africa, the fossils the continent holds are vital to piecing ...