3,975 Free Images of Threatening

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

Biologists search for Fountain Darter-4

Traditional dip netting-2

Mountain yellow-legged frog-1

amphibian animals

Hatchling Gopher tortoise

reptiles animals

Anglers release a salmon

recreational fish

Florida manatee-1

Close up of sutured surgery site on abdomen of lake sturgeon-1

Fishing on the Columbia River

Piping Plover chick

Biologists release a Gulf sturgeon in river

Sockeye salmon-4

Red wolf-1

wildlife animals

Dolly Varden-1

Northern Long-Eared Bat-4

Red wolf-1

wildlife animals

Biologists measure each bird

Devils River minnow

Northern Long-Eared Bat-1

Wood storks

Biologists search for Fountain Darter-1

Captive Devils Hole pupfish-2

Hine's emerald dragonfly larvae in shallow water-3

Florida manatee-2

Biologists search for Fountain Darter-3

Biologist stocks Gila trout in Mineral Creek-3

partnership new mexico

Fishing on the Columbia River-1

Biologist reattaches fish tank to helicopter cable-1

partnership new mexico

Pallid Sturgeon-1

underwater fish

Texas Blind Salamander-2

underwater animals

Biologists search for Fountain Darter-1

Close up of sutured surgery site on abdomen of lake sturgeon-2

Anglers with their fresh catch

Couple releases salmon

Pallid Sturgeon-1

Researchers track the movement of endangered Gray bats-2

Juvenile pallid sturgeon yearling

conservation fish

Fishing together-2

Wolf pup peeks its head out of the grass

Fishing together on the Columbia River

Red wolf on refuge-2

wildlife animals

Fish tank being lifted by helicopter

Black-footed Ferret-1

wildlife mammals

Pagosa skyrocket flowers-1

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

partnership new mexico

Eastern small-footed bat-1

Captive Devils Hole pupfish-1

Flying Earwig Hawaiian Damselfly

animals insects

Biologists search for Fountain Darter-1

Northern Aplomado Falcon-1

USFWS biologist nets fountain darters in the San Marcos River

Juvenile atlantic salmon

Spring-loving centaury-1

Captive Devils Hole pupfish-4

Ash Meadows Amargosa pupfish-1

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

partnership new mexico

Measuring a young bog turtle in a western north carolina bog

reptiles science

Piping plover chick-3

Delmarva Peninsula fox squirrel-6

wildlife animals

Pallid Sturgeon-1

underwater fish

Biologists tag a hellbender

north carolina amphibian

Biologist shows length of Gulf sturgeon in river

PIT tags for Gila trout

new mexico fish

Biologists in boat net Gulf sturgeon in river-1

Ash Meadows Amargosa pupfish-2

Black wolf pup

animals wyoming

Biologists show length of a Gulf sturgeon in river

Captive Devils Hole pupfish-2

Ash Meadows Amargosa pupfish-1

Wyoming toad-1

Biologist shows side view of Gulf sturgeon in river

Display at National Conservation Training Center-1

Juvenile pallid sturgeon -1

conservation fish

Juvenile pallid sturgeon -3

conservation fish

Hatchling Gopher tortoise feeding-3

reptiles animals

Ash Meadows Amargosa pupfish-1

Green pitcher plant with flower

Netting Gulf sturgeon in river

Biologists tagging Delmarva Peninsula fox squirrels

education mammals

Biologists show length of Gulf sturgeon in river-1

Biologists show length of Gulf sturgeon in river-3

Biologists show length of Gulf sturgeon in river-2

Ash Meadows Speckled Dace-2

Biologists display spine of Gulf sturgeon in river

Researchers track the movement of endangered Gray bats-1

Biologists show length of Gulf sturgeon in river-4

Closeup of a collared lynx

wildlife animals

Juvenile pallid sturgeon yearling-2

conservation fish

Hatchling Gopher tortoise basking on rye grass

reptiles animals

Biologists search for Fountain Darter-1

Anglers on the Columbia River shoreline

Candy darter-6

Young couple fishing

Pallid Sturgeon-1

underwater fish

Captive Devils Hole pupfish-2

Wading fisherman

Kendall Warm Springs dace-1

Pair of endangered Koloa Maoli

Biologist stocks Gila trout into Mineral Creek-1

Biologist shows side view of Gulf sturgeon in river-3

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