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 ...

Great Smoky Mountains National Park was one of four parks in the eastern U.S. where the Dragonfly Mercury Project got its start. Easier to catch and cheaper to test than fish, dragonfly larvae can be ...

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 ...

CARLSBAD, N.M. (KRQE) – Carlsbad Caverns National Park staff recently collected dragonfly larvae for the Dragonfly Mercury Project. Story continues below The project is part of a nationwide study that ...