5,541 Free Photos of Endangered

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

Biologists release a Gulf sturgeon in river-1

Biologists capture a Gulf sturgeon in river-1

Close-up of Lake sturgeon-7

Biologists in boat net Gulf sturgeon in river

Biologist in boat study Gulf sturgeon in river

Biologists capture a Gulf sturgeon in river-4

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

An endangered green sea turtle is released into the Mosquito Lagoon.

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

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

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

‘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

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

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