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 ...

One of the most accurate indicators of the health of the natural world is the ecosystem itself. For decades, scientists have studied certain species to learn about their habitats. This method is ...

The project is part of a nationwide study that works with citizen scientists and community volunteers to collect dragonfly larvae for mercury analysis. Scientists analyze the larvae to understand how ...

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 ...

Mercury wreaks havoc in freshwater ecosystems, but monitoring the risk to wildlife can be challenging. Researchers have now shown how dragonfly larvae act as biosentinels for toxic mercury. When ...

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 ...

Living in a home built by a critter that might eat you may seem suicidal. But tell that to the Hine’s emerald dragonfly. The larvae of this rare bug — the only dragonfly in the United States to be ...

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Stress can kill on a dramatic scale, according to a new study of immature dragonflies forced to live next to scary predators. In a newly published study, dragonfly larvae living within sight and smell ...

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 ...