3,856 Free Photos of Threatening

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

Captive Devils Hole pupfish-5

Delmarva Peninsula fox squirrel-6

wildlife animals

Appalachian elktoe mussel on the stream bottom

underwater biology

Pallid Sturgeon-1

Ash Meadows Amargosa pupfish-1

Juvenile Chinook salmon-3

Sumatran tiger-1

wildlife animals

Black-footed Ferret-8

wildlife mammals

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

Wyoming toad-3

reptiles animals

Red wolf-1

Captive Devils Hole pupfish-1

Delhi Sands flower- loving fly

arthropod nature

Biologists search for Fountain Darter-2

Florida manatee

Measuring a hellbender

north carolina amphibian

Texas wild-rice

Devils Hole Pupfish in captivity-1

Pallid sturgeon-1

Cryogenic tanks for Pallid sturgeon sperm

Chinook salmon migrating-2

Kendall Warm Springs dace-2

Columbian white-tailed Deer on Tenasillahe Island

Black-footed Ferret kit

wildlife mammals

Pallid sturgeon-1

conservation fish

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

Cryogenic tanks for Pallid sturgeon sperm-1

Black wolf catches a Uinta ground squirrel

wildlife animals

Black-footed Ferrets in preconditioning pens

wildlife mammals

Eastern small-footed bat-1

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

American paddlefish fry 5 week old

Recreational fishing on the Columbia River

Measuring a young bog turtle in a western north carolina bog

reptiles science

Red wolf on refuge-2

wildlife animals

Biologists in boat net Gulf sturgeon in river-1

Juvenile pallid sturgeon yearling

conservation fish

Ash Meadows Amargosa pupfish-1

Wyoming toad-1

amphibian animals

Wyoming toads-2

amphibian animals

Piping plover chick-3

Netting Gulf sturgeon in river

Juvenile pallid sturgeon -2

conservation fish

Delmarva Peninsula fox squirrel-6

wildlife animals

‘Alae ‘Ula (Hawaiian Moorehen)-2

Captive Devils Hole pupfish-4

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

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