Macro photo of a developing pallid sturgeon embryo. Developing embryo appears light gray
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Pallid Sturgeon Embryo
Macro photo of a developing pallid sturgeon embryo. Developing embryo appears light gray
Pallid Sturgeon Embryo
Developing pallid sturgeon embryo.
Developing pallid sturgeon embryo.
Trout Movements on the Smith River, One of Montana's Most Important Recreational Fisheries
Trout Movements on the Smith River, One of Montana's Most Important Recreational FisheriesLed by Dr. Al Zale with the Montana Cooperative Fishery Research Unit at Montana State University, researchers Michael Lance and T. David Ritter are working closely with Montana Fish, Wildlife & Parks personnel, local landowners, and engineers to study salmonid movements in the popular Smith River system in central Montana.
Trout Movements on the Smith River, One of Montana's Most Important Recreational Fisheries
Trout Movements on the Smith River, One of Montana's Most Important Recreational FisheriesLed by Dr. Al Zale with the Montana Cooperative Fishery Research Unit at Montana State University, researchers Michael Lance and T. David Ritter are working closely with Montana Fish, Wildlife & Parks personnel, local landowners, and engineers to study salmonid movements in the popular Smith River system in central Montana.
Sleeping Bear Dunes National Lakeshore
The USGS monitors water quality at the Sleeping Bear Dunes National Lakeshore in Empire, Michigan.
The USGS monitors water quality at the Sleeping Bear Dunes National Lakeshore in Empire, Michigan.
Sleeping Bear Dunes, Michigan
The USGS monitors water quality at the Sleeping Bear Dunes National Lakeshore in Empire, Michigan.
The USGS monitors water quality at the Sleeping Bear Dunes National Lakeshore in Empire, Michigan.
Sandbar beach on the Colorado River in Grand Canyon
Sandbar beach on the Colorado River in Grand CanyonRiver channel mapping boats on a sandbar beach on the Colorado River, in Grand Canyon, 2016. USGS photo, public domain.
Sandbar beach on the Colorado River in Grand Canyon
Sandbar beach on the Colorado River in Grand CanyonRiver channel mapping boats on a sandbar beach on the Colorado River, in Grand Canyon, 2016. USGS photo, public domain.
A piping plover adult standing over a nest scrape with four eggs
A piping plover adult standing over a nest scrape with four eggsA piping plover adult standing over a nest scrape with four eggs. Photo was taken on the Garrison Reach of the Missouri River, North Dakota
A piping plover adult standing over a nest scrape with four eggs
A piping plover adult standing over a nest scrape with four eggsA piping plover adult standing over a nest scrape with four eggs. Photo was taken on the Garrison Reach of the Missouri River, North Dakota
Piping plover adult stands on a sandbar
A piping plover adult stands on a sandbar on the Garrison Reach of the Missouri River, North Dakota. The yellow alphanumeric leg flag and color bands that identify it are clearly visible.
A piping plover adult stands on a sandbar on the Garrison Reach of the Missouri River, North Dakota. The yellow alphanumeric leg flag and color bands that identify it are clearly visible.
Two banded piping plover adults stand near a nest
Two banded piping plover adults stand near a nest with a small video camera pointed at it on a sandbar on the Garrison Reach of the Missouri River, North Dakota. The yellow alphanumeric leg flag and color bands that identify it are clearly visible. Video cameras were used to identify adults attending nests.
Two banded piping plover adults stand near a nest with a small video camera pointed at it on a sandbar on the Garrison Reach of the Missouri River, North Dakota. The yellow alphanumeric leg flag and color bands that identify it are clearly visible. Video cameras were used to identify adults attending nests.
Pink-footed shearwater in flight
A pink-footed shearwater in flight.
Fisher family denning in a mountain beaver burrow
NPS/USGS remote den camera. Fisher family denning in a mountain beaver burrow. Look carefully! Two fisher kits in front of their den site in a mountain beaver burrow (foreground) with mom (background left) watching on. The kits are about 4-5 months old.
NPS/USGS remote den camera. Fisher family denning in a mountain beaver burrow. Look carefully! Two fisher kits in front of their den site in a mountain beaver burrow (foreground) with mom (background left) watching on. The kits are about 4-5 months old.
A female Agassiz's desert tortoise at Joshua Tree National Park
A female Agassiz's desert tortoise at Joshua Tree National ParkA female Agassiz's desert tortoise at Joshua Tree National Park lounges in the entrance of her burrow, wearing a USGS radio.
A female Agassiz's desert tortoise at Joshua Tree National Park
A female Agassiz's desert tortoise at Joshua Tree National ParkA female Agassiz's desert tortoise at Joshua Tree National Park lounges in the entrance of her burrow, wearing a USGS radio.
Mother grizzly and cub at Gibbon River, Yellowstone National Park
Mother grizzly and cub at Gibbon River, Yellowstone National ParkA USGS grizzly bear researcher snapped this picture of a mother grizzly bear and her cub in Yellowstone National Park. Adult females are the most important segment of the grizzly bear populations because they are the reproductive engine.
Mother grizzly and cub at Gibbon River, Yellowstone National Park
Mother grizzly and cub at Gibbon River, Yellowstone National ParkA USGS grizzly bear researcher snapped this picture of a mother grizzly bear and her cub in Yellowstone National Park. Adult females are the most important segment of the grizzly bear populations because they are the reproductive engine.
Close-up of biocrust - lichen
Biological soil crusts, or biocrusts, are lichens, mosses, and cyanobacteria that grow on the soil surface and are common in the spaces between native plants in arid and semi-arid systems. Biocrusts reduce soil erosion, contribute to nutrient and water cycling, and reduce evaporation and invasion by exotic plants.
Biological soil crusts, or biocrusts, are lichens, mosses, and cyanobacteria that grow on the soil surface and are common in the spaces between native plants in arid and semi-arid systems. Biocrusts reduce soil erosion, contribute to nutrient and water cycling, and reduce evaporation and invasion by exotic plants.
Northern long-eared bat
Researcher wearing blue gloves holds a northern long-eared bat during a field trip to Rock Creek Park in Washington, D.C.
Researcher wearing blue gloves holds a northern long-eared bat during a field trip to Rock Creek Park in Washington, D.C.
Cattle Grazing at Sunset in Montana
Cattle graze on a ranch in western Montana.
Elk Feedgrounds
Elk grazing at a feedground in Wyoming.
Elk grazing at a feedground in Wyoming.
Blue Shiner, Cyprinella caerulea
Blue Shiner, Cyprinella caerulea
Interpretive signage for USGS Western Fisheries Research Center Pump House
Interpretive signage for USGS Western Fisheries Research Center Pump HouseInterpretive signage created by interpretive designer and illustrator Denise Dahn, with murals of USGS Western Fisheries Research Center Pump House created by Jeff Jacobson in background.
Interpretive signage for USGS Western Fisheries Research Center Pump House
Interpretive signage for USGS Western Fisheries Research Center Pump HouseInterpretive signage created by interpretive designer and illustrator Denise Dahn, with murals of USGS Western Fisheries Research Center Pump House created by Jeff Jacobson in background.
DDT nearly wiped out these birds, now they’re making a comeback
DDT nearly wiped out these birds, now they’re making a comebackWashington Post article on the impacts of DDT on birds.
DDT nearly wiped out these birds, now they’re making a comeback
DDT nearly wiped out these birds, now they’re making a comebackWashington Post article on the impacts of DDT on birds.
Assessment of the Cottrellville Shoreline Restoration Project
Assessment of the Cottrellville Shoreline Restoration ProjectUSGS scientists conduct a post-construction assessment of the Cottrellville Shoreline Restoration Project on the St. Clair River, Michigan.
Assessment of the Cottrellville Shoreline Restoration Project
Assessment of the Cottrellville Shoreline Restoration ProjectUSGS scientists conduct a post-construction assessment of the Cottrellville Shoreline Restoration Project on the St. Clair River, Michigan.