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See our science through the images below.

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A female Agassiz's desert tortoise at Joshua Tree National Park
A female Agassiz's desert tortoise at Joshua Tree National Park
A female Agassiz's desert tortoise at Joshua Tree National Park
A female Agassiz's desert tortoise at Joshua Tree National Park

A 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 Park
Mother grizzly and cub at Gibbon River, Yellowstone National Park
Mother grizzly and cub at Gibbon River, Yellowstone National Park

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.

pen tip next to lichen
Close-up of biocrust - lichen
Close-up of biocrust - lichen
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 with brown hair, person wearing blue gloves
Northern long-eared bat
Northern long-eared bat
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. 

Interpretive signage for USGS Western Fisheries Research Center Pump House
Interpretive signage for USGS Western Fisheries Research Center Pump House
Interpretive signage for USGS Western Fisheries Research Center Pump House
Interpretive signage for USGS Western Fisheries Research Center Pump House

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.

Assessment of the Cottrellville Shoreline Restoration Project
Assessment of the Cottrellville Shoreline Restoration Project
Assessment of the Cottrellville Shoreline Restoration Project
Assessment of the Cottrellville Shoreline Restoration Project

USGS scientists conduct a post-construction assessment of the Cottrellville Shoreline Restoration Project on the St. Clair River, Michigan.

Image: Chesapeake Bay ospreys are healthy despite toxics in their all-fish diet
Chesapeake Bay ospreys are healthy despite toxics in their fish diet
Chesapeake Bay ospreys are healthy despite toxics in their fish diet
Chesapeake Bay ospreys are healthy despite toxics in their fish diet

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.

Image: Blanding's Turtle
Blanding's Turtle
Blanding's Turtle
Blanding's Turtle

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.

Image: Black Bear Cub Measurements
Black Bear Cub Measurements
Black Bear Cub Measurements
Black Bear Cub Measurements

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.

Image: Red-Shouldered Hawk
Red-Shouldered Hawk
Red-Shouldered Hawk
Red-Shouldered Hawk

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.

Image: Racoon
Racoon
Racoon
Racoon

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.

Image: Trout
Trout
Trout
Trout

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. 

Image: Henslow's Sparrow
Henslow's Sparrow
Henslow's Sparrow
Henslow's Sparrow

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.

Image: Wood Turtle Tracking
Wood Turtle Tracking
Wood Turtle Tracking
Wood Turtle Tracking

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.

Image: Female Caribou
Female Caribou
Female Caribou
Female Caribou

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.

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