New research clarifies the mysterious ants from Europe that love North American sidewalks, backyards, and sidewalks. Kids with cookies helped.

What makes people volunteer to collect dead birds from local beaches? New research examines the motivations of citizen scientists.

New findings suggest captive breeding isn't a good way for fans of monarch butterflies to help the species.

An online war strategy game called SIGNAL will help resarchers understand the decision-making behind using nuclear weapons.

For some corals, a little extra heat isn't a big deal. But reefs aren't out of the woods yet.

Anyone with milkweed in their yard can help monarch butterflies just by mowing their lawn at the right time.

Diesel exhaust from heavy truck traffic contributes to air pollution, which has been linked to asthma, lung diseases, and heart disease.

"Getting dark in the middle of the day is not something that happens in a bee's normal life."

When neighbors got together under scientists' direction, they reduced invasive mosquitoes in several Maryland neighborhoods by an average of 76 percent.