3,856 Free Photos of Threatening

endangered and/or threatened species biologists(usfws)fish wildlife refuge water work of the service aquatic environment boat animals recreational

Chinook salmon-5

Biologist stocks Gila trout into Mineral Creek-4

Biologists dip net Gila trout out of tank into buckets-1

partnership new mexico

Captive Devils Hole pupfish-4

Cryogenic tanks for Pallid sturgeon sperm-2

Biologists show length of Gulf sturgeon in river-1

Bull trout-1

Young couple fishing-1

Biologists dip net Gila trout out of tank into buckets-4

partnership new mexico

Capative propagation of the purple bankclimber mussel-1

Anglers on the Columbia River

Wolf collaring-1

Captive Devils Hole pupfish-1

Biologists dip net Gila trout out of tank into buckets-4

partnership new mexico

Releasing a Fall Chinook salmon

Biologists in boat study Gulf sturgeon in river-1

Anglers fish near a town

Northern Aplomado Falcon-1

birds of prey bird

Fishing together-2

Black-footed Ferret-1

wildlife animals

Fishing together on the Columbia River

Pagosa skyrocket flowers-1

Biologists in boat net Gulf sturgeon in river-3

Biologist in boat study Gulf sturgeon in river-1

Ash Meadows Amargosa pupfish-1

Researchers track the movement of endangered Gray bats-1

Red wolf captive-5

animals mammals

Ash Meadows Amargosa pupfish-1

Sockeye salmon-2

underwater fish

Taylor's Checkerspot butterfly

butterfly nature

Myrtle's Silverspot butterfly

Delmarva Peninsula fox squirrel pit tagging-1

maryland mammals

Miami Blue Butterfly

animals insects

Red Knot banding

Pallid sturgeon juvenile yearling

conservation fish

PIT tags for Gila trout

new mexico fish

Spring-loving centaury-1

Biologist stocks Gila trout in Mineral Creek

Cryogenic tanks for Pallid sturgeon sperm-1

Biologist shows length of Gulf sturgeon in river

Flying Earwig Hawaiian Damselfly

animals insects

Biologists search for Fountain Darter-1

Biologists in boat net Gulf sturgeon in river-1

Researchers track the movement of endangered Gray bats-1

Ash Meadows Amargosa pupfish-1

USFWS biologist nets fountain darters in the San Marcos River

Black-footed Ferret-1

wildlife mammals

Hatchling Gopher tortoise feeding-7

reptiles animals

Recreational boating on the Columbia River

Pair of endangered Koloa Maoli

Biologists show length of Gulf sturgeon in river-1

Laysan Duck pair on Eastern Island on Midway Atoll

Fishing for salmon on the Columbia River

Display at National Conservation Training Center

Biologists search for Fountain Darter-1

Ash Meadows Amargosa pupfish-1

Biologists show length of Gulf sturgeon in river-1

Researchers track the movement of endangered Gray bats-1

Biologists feed a protein and sugar mixture to each captured bird

Pallid sturgeon fry

Mountain yellow-legged frog-1

amphibian animals

Caribbean roseate terns-2

Fish tank being lifted by helicopter

Captive Devils Hole pupfish-2

Female lynx looks around

Biologist shows front view of Gulf sturgeon in river-3

Red wolf on refuge-6

Biologist shows side view of a Gulf sturgeon in river

Gila Trout Transport-1

military aircraft

Juvenile pallid sturgeon yearling-2

conservation fish

Hatchling Gopher tortoise basking on rye grass

reptiles animals

Biologists show length of Gulf sturgeon in river-1

Biologists search for Fountain Darter-2

Red Knot banding-3

Biologists show length of Gulf sturgeon in river-1

Young couple fishing

Biologist shows side view of Gulf sturgeon in river-3

Biologists display spine of Gulf sturgeon in river

Biologist shows front view of Gulf sturgeon in river-2

Dip netting a salmon in the Klickitat River-4

Anglers on the Columbia River shoreline

Candy darter-6

Two year old pallid sturgeon

conservation fish

Laysan duck

Chucky Madtom

Devils Hole pupfish-2

Santa Monica Mountains dudleya-4

Preparing a small GPS satellite collar for the sedated lynx

mammals monitor

Wyoming toad-2

Biologists show length of Gulf sturgeon in river-2

Dudley Bluffs twinpod flowers and ant

Rafinesque's big-eared bat-3

Closeup of a collared lynx

wildlife animals

Ash Meadows Speckled Dace-2

Sockeye salmon-1

Wolf pup peeks its head out of the grass

Ash Meadows Speckled Dace-2

Biologists show length of Gulf sturgeon in river-4

Biologists show length of Gulf sturgeon in river-3

USFWS biologist nets fountain darters in the San Marcos River-7

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