4,178 Free Images of Threatening

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

Devils Hole Pupfish in captivity-1

Service employee displays an Atlantic Salmon

The Pacific Hawaiian Damselfly

arthropod animals

Mississippi Sandhill Crane-4

Wyoming toad-9

reptiles indoor

Tri-colored bat-1

Black-footed Ferret kit

wildlife mammals

Pallid sturgeon-1

Appalachian elktoe mussel on the stream bottom

underwater biology

Pallid Sturgeon-1

Delhi Sands flower- loving fly

arthropod nature

Biologists search for Fountain Darter-2

Juvenile Chinook salmon-3

Black-footed Ferret-8

wildlife mammals

Cryogenic tanks for Pallid sturgeon sperm

Ash Meadows Amargosa pupfish-1

Devils Hole Pupfish in captivity-1

Florida manatee

Measuring a hellbender

north carolina amphibian

Texas wild-rice

Captive Devils Hole pupfish-1

Chinook salmon migrating-2

Sumatran tiger-1

wildlife animals

Kendall Warm Springs dace-2

Pallid sturgeon-1

conservation fish

Columbian white-tailed Deer on Tenasillahe Island

Wyoming toad-3

reptiles animals

Red wolf-1

Blue Whale carcass

Green sea turtle hatchling

reptiles animals

Hine's emerald dragonfly larvae in shallow water-2

Anglers release a salmon-3

recreational fish

Anglers fish near a town

Ash Meadows Amargosa pupfish-1

Researchers track the movement of endangered Gray bats-1

Ash Meadows Amargosa pupfish-1

Red wolf captive-5

animals mammals

Black-footed Ferret-1

wildlife mammals

Hatchling Gopher tortoise feeding-7

reptiles animals

Northern Aplomado Falcon-1

birds of prey bird

Delmarva Peninsula fox squirrel pit tagging-1

maryland mammals

Pagosa skyrocket flowers-1

Biologists in boat net Gulf sturgeon in river-3

Biologist in boat study Gulf sturgeon in river-1

Myrtle's Silverspot butterfly

Biologist stocks Gila trout in Mineral Creek

Biologist shows length of Gulf sturgeon in river

Sockeye salmon-2

underwater fish

Taylor's Checkerspot butterfly

butterfly nature

Releasing a Fall Chinook salmon

Biologists in boat study Gulf sturgeon in river-1

Cryogenic tanks for Pallid sturgeon sperm-1

Fishing together-2

Black-footed Ferret-1

wildlife animals

Fishing together on the Columbia 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

Miami Blue Butterfly

animals insects

Red Knot banding

Pallid sturgeon juvenile yearling

conservation fish

PIT tags for Gila trout

new mexico fish

USFWS biologist nets fountain darters in the San Marcos River

Spring-loving centaury-1

American paddlefish fry 5 week old

Biologists search for Fountain Darter-3

Biologists dip net Gila trout out of tank into buckets-2

partnership new mexico

Colorado hookless Cactus-1

Biologists in boat net Gulf sturgeon in river-5

Biologists dip net Gila trout out of tank into buckets-5

partnership new mexico

Anglers catch and release

Black-footed Ferrets in preconditioning pens

wildlife mammals

Eastern small-footed bat-1

Recreational fishing on the Columbia River

Green pitcher plant with flower

Juvenile pallid sturgeon -1

conservation fish

Biologists in boat study Gulf sturgeon in river-1

Hatchling Gopher tortoise feeding-3

reptiles animals

Pair of Wood storks

Black wolf pup

animals wyoming

Biologists tag a hellbender

north carolina amphibian

Black-footed Ferret-2

wildlife animals

Biologist in boat study Gulf sturgeon in river-1

Black-footed Ferret kits

wildlife animals

Biologists in boat net Gulf sturgeon in river-1

Endangered Braunton's milk-vetch

Biologist shows front view of Gulf sturgeon in river

Wyoming toad-1

Northern Aplomado Falcon-1

Biologists search for Fountain Darter-1

Juvenile atlantic salmon

Employee displays banded Hawai‘i creeper

Female Hawaii ‘Ākepa

Captive Devils Hole pupfish-2

Eastern small-footed bat-2

Black wolf catches a Uinta ground squirrel

wildlife animals

Measuring a young bog turtle in a western north carolina bog

reptiles science

Cryogenic tanks for Pallid sturgeon sperm-1

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