Images

A drilling rig for shale gas development take at night from an overlook on Route 6 in Bradford County Pennsylvania.

Ticks spread the widest variety of diseases that are harmful to humans, including Lyme disease. This image shows an adult female blacklegged tick, or deer tick.

Sample bottle carousel from automated ISCO pump sampler deployed on the Elwha River, Washington to obtain suspended sediment samples.

Myotis septentrionalis, northern myotis (Vespertilionidae) with growth of Geomyces destructans clearly evident.

Parasitic mouth of the invasive sea lamprey

The red-cockaded woodpecker is a federally listed species that declined in the southeastern United States from approximately 1.6 million cooperative breeding groups to less than 3,500 groups due to loss and degradation of habitat and fire suppression.

Cannibalistic morph Barred Tiger Salamander Closeup, Jamestown, ND. Perhaps the rarest barred tiger salamander morphotype is the "cannibal" morph. Cannibal morphs are typically larvae and are distinguished by their disproportionally larger heads and  pronounced vomerine teeth.

Cannibal morph Barred Tiger Salamander larvae in a bucket of typical morphs larvae, Kidder County, ND.

Barred Tiger Salamander larva with typical larva in its mouth, Kidder County, ND. 

USGS National Wildlife Health Center laboratory technician preparing avian samples for avian influenza testing.

Red-breasted Merganser pair in North Slope of Alaska

USGS Water towers at Upper Midwest Environmental Sciences Center

An Appalachian Mountain Stream in the Spring. Photographed by Samuel H Austin

Left: USGS Employee L. Windham-Myers showing a surface water sample collected in acid-cleaned mason jar (deployed for 24 hours) for a mercury study conducted at the Cosumnes River Nature Preserve (CA).  Photographer: M. Marvin-DiPasquale. Date: 10/29/2014.

Clark's grebe sitting on a nest at Thermalito Afterbay, California.

This image is of invasive tamarisk (salt cedar) growing on the banks of the Colorado River. 

A mountain bluebird eats a giant mistletoe berry in an ash tree in Sedona, Arizona (Oak Creek).  These bluebirds, and many other types of birds, rely on mistletoe berries for sustenance. As a result, they also help distribute the mistletoe seeds.

Students from Hickman High School’s biology club ask questions during an educational tour at the Columbia Environmental Research Center (Columbia, MO).

Dr. Greta Aeby (left), a coral expert with the Hawai‘i Institute of Marine Biology at the University of Hawai‘i, and Dr. Thierry Work, wildlife disease specialist for the USGS National Wildlife Health Center exit the water at ‘Anini after more than six hours of documenting and photographing diseased rice corals.

A mountain bluebird eats a giant mistletoe berry in an ash tree in Sedona, Arizona (Oak Creek).  These bluebirds, and many other types of birds, rely on mistletoe berries for sustenance. As a result, they also help distribute the mistletoe seeds.

A mountain bluebird eats a giant mistletoe berry in an ash tree in Sedona, Arizona (Oak Creek).  These bluebirds, and many other types of birds, rely on mistletoe berries for sustenance. As a result, they also help distribute the mistletoe seeds.