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See our science through the images below.
A 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 lounges in the entrance of her burrow, wearing a USGS radio.
A 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.
A 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.
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.
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 graze on a ranch in western Montana.
Elk grazing at a feedground in Wyoming.
Elk grazing at a feedground in Wyoming.
Blue Shiner, Cyprinella caerulea
Interpretive 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 created by interpretive designer and illustrator Denise Dahn, with murals of USGS Western Fisheries Research Center Pump House created by Jeff Jacobson in background.
Washington Post article on the impacts of DDT on birds.
Washington Post article on the impacts of DDT on birds.
USGS scientists conduct a post-construction assessment of the Cottrellville Shoreline Restoration Project on the St. Clair River, Michigan.
USGS scientists conduct a post-construction assessment of the Cottrellville Shoreline Restoration Project on the St. Clair River, Michigan.
The Florida Keys reefs have been experiencing a severe disease outbreak from 2014 to present called Stony Coral Tissue Loss Disease (SCTLD).
The Florida Keys reefs have been experiencing a severe disease outbreak from 2014 to present called Stony Coral Tissue Loss Disease (SCTLD).
Laysan albatross with chick on Kauai, 2016.
An adult osprey brings a fish to its nestlings at Poplar Island, Maryland. USGS researchers placed game cameras in some osprey nests to identify the types of fish that Chesapeake Bay ospreys are eating, then tested those fish species for toxic chemicals.
An adult osprey brings a fish to its nestlings at Poplar Island, Maryland. USGS researchers placed game cameras in some osprey nests to identify the types of fish that Chesapeake Bay ospreys are eating, then tested those fish species for toxic chemicals.
Bradley Compton, Research Associate with the Massachusetts CRU, holding a Blanding's turtle, a threatened species in Massachusetts.
Bradley Compton, Research Associate with the Massachusetts CRU, holding a Blanding's turtle, a threatened species in Massachusetts.
Virginia Cooperative Fish and Wildlife research unit students (L to R) Colleen Olfenbuttel (MS), Johnny Wills (MS), and Sybille Klenzendorf (Ph.D.) weigh and measure a black bear cub at a den site in western Virginia.
Virginia Cooperative Fish and Wildlife research unit students (L to R) Colleen Olfenbuttel (MS), Johnny Wills (MS), and Sybille Klenzendorf (Ph.D.) weigh and measure a black bear cub at a den site in western Virginia.
Red-shouldered hawk capture. Recently graduated MS student Carlene Henneman working on MN Unit Leader David Anderson’s Red-shouldered hawk project.
Red-shouldered hawk capture. Recently graduated MS student Carlene Henneman working on MN Unit Leader David Anderson’s Red-shouldered hawk project.
Ted Simons, Assistant Leader-NC Unit, Arielle Waldstein, MS Student-NC Unit, and Allan O'Connell-Research Wildlife Biologist-USGS Patuxent Wildlife Research Center, with nine raccoons trapped at Cape Lookout National Seashore as part of a study there to evaluate the consequences of predator removal for endangered species management.
Ted Simons, Assistant Leader-NC Unit, Arielle Waldstein, MS Student-NC Unit, and Allan O'Connell-Research Wildlife Biologist-USGS Patuxent Wildlife Research Center, with nine raccoons trapped at Cape Lookout National Seashore as part of a study there to evaluate the consequences of predator removal for endangered species management.
Emerald Lake in the High Sierras of Sequoia National Park. Ph.D. Student Luke Ackerman, Ph.D. Student Jennifer Ramsay, and Oregon-Fish Unit Leader Carl Schreck, sampling blood and tissues from trout and taking whole fish for determination of possible effects of airborne contaminants.
Emerald Lake in the High Sierras of Sequoia National Park. Ph.D. Student Luke Ackerman, Ph.D. Student Jennifer Ramsay, and Oregon-Fish Unit Leader Carl Schreck, sampling blood and tissues from trout and taking whole fish for determination of possible effects of airborne contaminants.
Katlyn Steinkerchner (undergraduate research technician for PA Coop Unit) is banding a Henslow’s sparrow.
Katlyn Steinkerchner (undergraduate research technician for PA Coop Unit) is banding a Henslow’s sparrow.
Michael Jones, Ph.D. candidate in the Massachusetts unit, tracking the movements of wood turtles in the Connecticut River Valley of Massachusetts.
Michael Jones, Ph.D. candidate in the Massachusetts unit, tracking the movements of wood turtles in the Connecticut River Valley of Massachusetts.
Lincoln Parrett, of the Alaska Cooperative Fish and Wildlife Unit, restrains a female caribou as her calf looks on.
Lincoln Parrett, of the Alaska Cooperative Fish and Wildlife Unit, restrains a female caribou as her calf looks on.