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

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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 ...

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 ...

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) Number of observation records per 500-m elevational band. (b) Number of genera and the number of their observation records in the database. (c) Cumulative number of observation records of each ...

With 360-degree vision, bright-colored bodies that sparkle jewel-like in the sun and acrobatic flight patterns reaching speeds of nearly 35 miles per hour, dragonflies are some of the more glamorous ...