The human species is on the move. Last year there were more people living outside of their birth countries than at any other time in modern history, according to the United Nations. It’s a sea change ...

WASHINGTON (AP) — Humans are the only animal that lives in virtually every possible environment, from rainforests to deserts to tundra. This adaptability is a skill that long predates the modern age.

Climate change is making some regions less habitable for humans, whether by raising sea levels, hurting crop yields, or intensifying droughts, storms, and wildfires. Yet, if you ask people why they're ...

Whether it’s political leaders like Donald Trump expressing concern about immigration, or individuals forced to leave their homes due to conflict, the movement of people across borders—and where they ...

The histories of sled dogs and humans in the Arctic have been intricately linked for thousands of years, so it is no surprise that the migration patterns of these dogs mirror those of humans through ...