Occurred on May 7, 2015 / Dohr, Germany Info from Licensor: "The metamorphosis of a dragonfly larva (Odonata) into a fully developed dragonfly is one of nature's most stunning spectacles – a process ...

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 Caverns National Park staff recently collected dragonfly larvae for the Dragonfly Mercury Project. The project is ...

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 ...

As one of the first-ever evolved winged insects, dragonflies have inhabited the earth for almost 300 million years. We instantly recognize these animals by their beautiful outer appearance and their ...

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 ...

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 ...

(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 ...

This is a preview. Log in through your library . Abstract Cannibalism is likely to operate as a form of population control in dragonfly larvae. I performed aquarium experiments to investigate the ...

When Martin Wikelski and David Wilcove went bird-watching in Cape May, N.J., one fall day in 2004, they were surprised to find that the main spectacle had four wings instead of two. Migrating ...

The Piper Super Cub is a nimble favorite of Alaska bush pilots who land on and take off from gravel bars and mountaintops. Engineers who designed the plane in the 1940s found a simple model that still ...