4,010 Free Images of Threatening

endangered and/or threatened species wildlife refuge fish work of the service animals wildlife wildlife viewing mammals biologists(usfws)water

Lake sturgeon tail with floy tag for identification

Measuring the ears of a sedated lynx

mammals monitor

Fisheries biologist releases Gulf sturgeon -1

Bridge on the Columbia River

Biologists search for Fountain Darter-5

Pallid Sturgeon-1

underwater fish

Biologist reattaches fish tank to helicopter cable-3

partnership new mexico

Texas Blind Salamander-2

underwater animals

Chinook salmon migrating-3

Red wolf-3

wildlife mammals

Okaloosa darter-5

Dolly Varden-1

Chinook salmon migrating-4

Descending deeper into the mine

Wood stork in flight

Fisheries biologist releases Gulf sturgeon

Biologists measure a Gulf sturgeon in river

Biologists process a Gulf sturgeon in river

Hatchling Gopher tortoise feeding

reptiles georgia

Okaloosa darter-2

Gila Trout Release

new mexico fish

Mountain yellow-legged frog-1

wildlife animals

Florida manatee-1

Pallid sturgeon-2

underwater fish

Sockeye salmon-4

Biologists with Gulf sturgeon in river

Captive Devils Hole pupfish-2

Pallid Sturgeon-4

underwater fish

Large ghost orchid

Julia Creek Dunnart

marsupial animals

Greater sage-grouse

Green Sea Turtle hatchling

wildlife animals

Devils Hole Pupfish in captivity

Florida scrub-jay

Biologist transfers adult Gila trout to buckets for distribution

partnership new mexico

Texas Blind Salamander-3

underwater animals

Devils Hole Pupfish in captivity-3

Ash Meadows Speckled Dace-4

Captive Devils Hole pupfish-5

Sockeye salmon-5

Whooping cranes at Quivira National Wildilfe Refuge

Biologist reattaches fish tank to helicopter cable-1

partnership new mexico

Sign designating area for Endangered Braunton's milk-vetch

Angler on shore

Southern Sea Otter with gull

Black-footed Ferret-3

wildlife mammals

Wyoming toad-3

reptiles colorado

Northeastern beach tiger beetles

arthropod animals

Hatchling Gopher tortoise sleeping

reptiles georgia

Trio of Tricolored bats

Distant view of a polar bear pair

marine mammal mammals

Biologists search for Fountain Darter-3

Delmarva Peninsula fox squirrel-2

animals mammals

Tri-colored bat

Texas Indigo snake

Biologists search for Fountain Darter-1

Ash Meadows ivesia

Collecting measurements of a sedated lynx

mammals monitor

Northern Aplomado Falcon-1

Captive Devils Hole pupfish-2

Gila Trout in net

new mexico fish

Eastern red bat

Spring-loving centaury

Baby loggerhead turtles hatching at night

Taking notes

Key deer

wildlife animals

Florida manatee-1

underwater water

Fisheries biologist displays Gulf sturgeon underside-1

Red wolf-2

wildlife animals

Pallid sturgeon-1

underwater fish

Mountain yellow-legged frog-1

Hawaiian duck

California Condor waits for his partner

wildlife refuge california

Wolf collaring

Fisheries biologists measure Gulf sturgeon-1

Northern long-eared Bat-1

Red wolf-1

wildlife animals

Biologist holds Gila trout in Mineral Creek

partnership new mexico

Okaloosa darter-4

Finding a bat

Male Least tern waves fish at female

Group of Wood Storks

Black-footed Ferret reintroduction

grassland mammals

Wolf collaring-1

Devils Hole Pupfish in captivity-3

Male Short-tailed albatross and chick

Female Short-tailed Albatross on Chick

Sockeye salmon-1

Chinook salmon-3

Mississippi Sandhill Crane-1

Wood stork-1

Chinook salmon-1

Devils Hole Pupfish in captivity-1

Northern aplomado falcon-1

Paddlefish in clear water-1

Laysan albatross in flight

Juvenile Chinook salmon-2

Red wolf-1

wildlife animals

Roseate tern nest hidden in the plants

Miami Blue Butterfly-3

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