One of the most accurate indicators of the health of the natural world is the ecosystem itself. For decades, scientists have ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. With 360-degree vision, bright-colored bodies that sparkle jewel-like in the sun and acrobatic flight patterns reaching speeds of ...

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 ...

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Get unlimited access to ad-free articles and exclusive content. Tadpoles grow pumped-up tails when stressed out by the threat of predators nearby, a new study finds. These beefed-up tails help the ...

More than 1,000 dragonfly larvae have been sampled to determine at-risk areas for mercury toxicity. One of the most accurate indicators of the health of the natural world is the ecosystem itself. For ...