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Democratic governors and President Donald Trump agree to fight an invasion of non-native fish that has spread up the Mississippi River and threatens the Great Lakes.

The US and other countries have a legal definition of citizenship, yet human psychology and identity politics result in ingrained biases over who truly belongs.

Even though research supports the change, most cities have been slow to ban left turns at even the most congested intersections.

A scholar and former college dean explains why higher education's reliance on majors to measure academic quality may be an outdated approach.

Caribou, migrating birds and many other types of wildlife rely on this expanse of wetlands and tundra. Humanity and the climate depend on a healthy Arctic, too.

Libraries and archives at universities across the nation catalog and steward the donated papers of members of Congress. But that historically significant work is now in jeopardy.

Florida is one of the worst states in the US when it comes to access to affordable dental care - and children are suffering as a result.

The James Webb Space Telescope has 2 powerful instruments that see light the human eye can't.

Traditional Jewish ceremonies, like Christian ones, marked a woman's transition from daughter to wife going from her parents to her husband. But there are creative ways to reflect gender equality while honoring tradition.

The Islamic Republic has a history of targeting minority ethnic groups, especially the Kurds, when it feels threatened.