Vance Holliday jumped at the invitation to go do geology at New Mexico's White Sands. The landscape, just west of Alamogordo, ...

Humans are the only animal that lives in virtually every possible environment, from rainforests to deserts to tundra ...

About 70,000 years ago in Africa, humans expanded into more extreme environments, a new study finds, setting the stage for our global migration.

A sequence of footprints hidden deep within a long-dried paleo‑lake bed were discovered in 2021 by archaeologists, pushing back the purported arrival of early North American settlers between 23,000 an ...