3,856 Free Photos of Threatening

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

Captive Devils Hole pupfish-1

Pair of Wood storks-1

Devils Hole Pupfish in captivity-1

Wyoming toad-2

reptiles animals

Pallid Sturgeon-1

Green sea turtle hatchling

reptiles animals

Biologists weigh a Gulf sturgeon in river-2

Florida manatee

Close-up of Lake sturgeon-7

Chinook salmon migrating-2

Pallid sturgeon-1

conservation fish

Chinook salmon migrating-1

Black-footed Ferret kit

wildlife mammals

Pallid Sturgeon-1

Biologists process a Gulf sturgeon in river-4

Service employee displays an Atlantic Salmon

Gila trout tank

Key deer-1

animals mammals

Biologists capture a Gulf sturgeon in river

Mountain yellow-legged frog tadpole

underwater amphibian

Checking the mine wall for bats

Common tern-3

Florida manatee-1

underwater water

Captive Devils Hole pupfish-1

Tricolored heron and Wood stork

Red wolf

Pallid Sturgeon-1

underwater fish

Wyoming toad-1

reptiles colorado

Biologists search for Fountain Darter-4

Traditional dip netting-2

Mountain yellow-legged frog-1

amphibian animals

Hatchling Gopher tortoise

reptiles animals

Anglers release a salmon

recreational fish

Florida manatee-1

Close up of sutured surgery site on abdomen of lake sturgeon-1

Fishing on the Columbia River

Piping Plover chick

Biologists release a Gulf sturgeon in river

Sockeye salmon-4

Red wolf-1

wildlife animals

Dolly Varden-1

Northern Long-Eared Bat-4

Red wolf-1

wildlife animals

Biologists measure each bird

Devils River minnow

Northern Long-Eared Bat-1

Wood storks

Biologists search for Fountain Darter-1

Captive Devils Hole pupfish-2

Hine's emerald dragonfly larvae in shallow water-3

Florida manatee-2

Biologists search for Fountain Darter-3

Biologist stocks Gila trout in Mineral Creek-3

partnership new mexico

Fishing on the Columbia River-1

Biologist reattaches fish tank to helicopter cable-1

partnership new mexico

Pallid Sturgeon-1

underwater fish

Texas Blind Salamander-2

underwater animals

Biologists search for Fountain Darter-1

Close up of sutured surgery site on abdomen of lake sturgeon-2

Anglers with their fresh catch

Couple releases salmon

Pallid Sturgeon-1

Researchers track the movement of endangered Gray bats-2

Indiana bat

landscape water

Black-footed Ferret-8

wildlife mammals

Wyoming toad-9

reptiles indoor

Biologists weigh a Gulf sturgeon in river-3

Biologists capture a Gulf sturgeon in river-4

Biologists process a Gulf sturgeon in river-4

Biologists weigh a Gulf sturgeon in river-5

Wyoming toad-3

reptiles animals

Biologists capture a Gulf sturgeon in river-1

Wyoming toad-3

reptiles animals

clay-loving wild buckwheat-2

Pallid sturgeon-1

conservation fish

Hellbender in hand

north carolina amphibian

Devils Hole Pupfish in captivity-1

Texas Blind Salamander-1

underwater animals

Wood stork-2

Biologists search for Fountain Darter-4

Hawaiian Monk Seal

Captive Devils Hole pupfish-1

Appalachian elktoe mussel on the stream bottom

underwater biology

Biologists search for Fountain Darter-1

Wildlife educators with African Serval cat

Ash Meadows Amargosa pupfish-5

Juvenile pallid sturgeon

conservation fish

Biologists dip net Gila trout out of tank into buckets

partnership new mexico

Cryogenic tanks for Pallid sturgeon sperm

Ash Meadows Amargosa pupfish-1

Atlantic sturgeon-3

Biologists search for Fountain Darter-2

Delhi Sands flower- loving fly

arthropod nature

Sumatran tiger-1

wildlife animals

Captive Devils Hole pupfish

Female Hawaii ‘Ākepa

Biologists in boat net Gulf sturgeon in river-1

Biologists show length of Gulf sturgeon in river

Biologists in boat net Gulf sturgeon in river-1

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