4,173 Free Images of Threatening

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

Fisheries biologists release Gulf sturgeon

Biologist transfers adult Gila trout to buckets for distribution-3

partnership new mexico

Biologist shows scales on the Gulf sturgeon in river

Texas Blind Salamander-1

underwater animals

Puerto Rican Amazons days prior to release

Biologists process a Gulf sturgeon in river-4

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

Sockeye salmon-2

underwater fish

Taylor's Checkerspot butterfly

butterfly nature

Pagosa skyrocket flowers-1

Biologists in boat net Gulf sturgeon in river-3

Biologist in boat study Gulf sturgeon in river-1

Northern Aplomado Falcon-1

birds of prey bird

Ash Meadows Amargosa pupfish-1

Red wolf captive-5

animals mammals

Black-footed Ferret-1

wildlife mammals

Hatchling Gopher tortoise feeding-7

reptiles animals

Anglers fish near a town

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

Myrtle's Silverspot butterfly

Delmarva Peninsula fox squirrel pit tagging-1

maryland mammals

Pallid sturgeon juvenile yearling

conservation fish

PIT tags for Gila trout

new mexico fish

Releasing a Fall Chinook salmon

Biologists in boat study Gulf sturgeon in river-1

Spring-loving centaury-1

Biologist stocks Gila trout in Mineral Creek

Cryogenic tanks for Pallid sturgeon sperm-1

Fishing together-2

Biologist shows length of Gulf sturgeon in river

Red Knot banding

USFWS biologist nets fountain darters in the San Marcos River

Miami Blue Butterfly

animals insects

Ash Meadows Amargosa pupfish-1

Researchers track the movement of endangered Gray bats-1

‘Alae ‘Ula (Hawaiian Moorehen)-2

Captive Devils Hole pupfish-4

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

Cryogenic tanks for Pallid sturgeon sperm-1

Black wolf catches a Uinta ground squirrel

wildlife animals

American paddlefish fry 5 week old

Measuring a young bog turtle in a western north carolina bog

reptiles science

Ash Meadows Amargosa pupfish-1

Delmarva Peninsula fox squirrel-6

wildlife animals

Wyoming toad-1

amphibian animals

Wyoming toads-2

amphibian animals

Red wolf on refuge-2

wildlife animals

Biologists in boat net Gulf sturgeon in river-1

Juvenile pallid sturgeon yearling

conservation fish

Female Hawaii ‘Ākepa

Juvenile pallid sturgeon -2

conservation fish

Biologists search for Fountain Darter-3

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