Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Ecologists often rely on health data of fish and bird populations ...

Dragonflies, those colorful bugs zooming around like mini-helicopters, are more than just a spectacular sight. These iridescent predators may also be the best way to detect where and how mercury—a ...

A years-in-the-making model developed by the National Park Service and U.S. Geological Survey could offer a deeper look at mercury concentration levels on federal lands across the country — including ...

Dragonfly larvae sampled from Cape Cod and Minuteman National Historical Park recently helped tell a much bigger story about mercury pollution in the U.S. A national study published this week in the ...