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

Every day for the last month I’ve been working along the Dalton Highway, the 495-mile, two-lane gravel road that connects ...

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

Despite falling global mercury emissions, mercury levels in Arctic wildlife continue to rise. A new study reveals that ocean currents are delivering legacy mercury pollution from distant regions like ...