Soon, net-touting volunteers visited water sources within dozens of National Parks to scoop up dragonfly larvae. The volunteers then sent the larvae to experts like Sarah Janssen, a scientist at ...

Plus, it’s cheaper, easier, and more accurate to analyze mercury in insect larvae than it is in fish or birds. A U.S. Geological Survey scientist records data for the Dragonfly Mercury Project ...

One such effort is underway in Cumbria, as a team of conservationists transported buckets of sphagnum moss containing dragonfly larvae to a new site at RSPB Campfield Marsh, a nature reserve on ...