Various forms of mercury are released naturally by volcanoes and weathering of rocks and soil. Human activities, such as mining or burning fossil fuels, can also release the element into the ...

To track the sources of mercury pollution across wildlands in the U.S., scientists have turned to an unlikely indictor: dragonfly larvae. As mercury settles in water and soil, it is taken up by ...

(Nanowerk News) It is a high-speed movement: within fractions of a second the mouthparts of the dragonfly larvae spring forwards to seize its prey. For decades, researchers had assumed that this ...

Dragonfly larvae samples were collected as part of the Dragonfly Mercury Project. Many national parks and other protected places, including national forests, wildlife refuges, and tribal lands, have ...

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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 ...

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 ...

A study published in The Journal of Wildlife Management found varying risks to species due to mercury pollution across the ...

(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 ...

The Lockport Prairie Nature Preserve provides a summer home for a small group of an endangered species of dragonflies born and raised in a biology lab in South Dakota. A team of ecologists with the ...