3,975 Free Images of Threatening

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

Couple releases salmon

Pallid Sturgeon-1

Researchers track the movement of endangered Gray bats-2

African Golden Cat

african animals animals

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

Biologists tagging Delmarva Peninsula fox squirrels

education mammals

Biologists show length of Gulf sturgeon in river-1

Biologists show length of Gulf sturgeon in river-3

Biologists show length of Gulf sturgeon in river-2

Ash Meadows Speckled Dace-2

Biologists display spine of Gulf sturgeon in river

Researchers track the movement of endangered Gray bats-1

Biologists show length of Gulf sturgeon in river-4

Closeup of a collared lynx

wildlife animals

Juvenile pallid sturgeon yearling-2

conservation fish

Hatchling Gopher tortoise basking on rye grass

reptiles animals

Biologists search for Fountain Darter-1

Anglers on the Columbia River shoreline

Candy darter-6

Young couple fishing

Pallid Sturgeon-1

underwater fish

Captive Devils Hole pupfish-2

Wading fisherman

Kendall Warm Springs dace-1

Pair of endangered Koloa Maoli

Biologist stocks Gila trout into Mineral Creek-1

Biologist shows side view of Gulf sturgeon in river-3

Golden Paintbrush (CALE) found on Ebey's Bluff, located at the Robert Y. Pratt Preserve, Washington State

Wolf collaring-1

Green Sea Turtle hatchling-2

reptiles animals

Pitcher's thistle

Pallid sturgeon-1

Biologists release a Gulf sturgeon in river-1

Pallid Sturgeon-1

Black-footed Ferret

wildlife animals

Service employee displays an Atlantic Salmon

Delmarva Peninsula fox squirrel-6

wildlife animals

Ash Meadows Amargosa pupfish-1

Mississippi Sandhill Crane-4

Biologist transfers adult Gila trout to buckets for distribution-3

partnership new mexico

Hine's emerald dragonfly larvae in shallow water-2

Anglers release a salmon-3

recreational fish

The Pacific Hawaiian Damselfly

arthropod animals

Columbian white-tailed Deer on Tenasillahe Island

Measuring a hellbender

north carolina amphibian

Devils Hole Pupfish in captivity-1

Masked bobwhite quail

Documenting the Hellbender

north carolina amphibian

Hatchling Gopher tortoises sharing a burrow

reptiles georgia

Biologists search for Fountain Darter-3

Ash Meadows Amargosa pupfish-1

Red wolf-1

Pallid sturgeon-1

conservation fish

Puerto Rican Amazons days prior to release

Kendall Warm Springs dace-2

Biologist shows scales on the Gulf sturgeon in river

Juvenile Gopher tortise feeding

reptiles animals

Blue Whale carcass

Devils Hole Pupfish in captivity-1

Anglers release a salmon-3

recreational fish

Texas wild-rice

Netting Gulf sturgeon in river

Flying Earwig Hawaiian Damselfly

animals insects

Biologists search for Fountain Darter-1

Biologists dip net Gila trout out of tank into buckets-1

partnership new mexico

Ash Meadows Amargosa pupfish-1

Piping plover chick-3

Juvenile pallid sturgeon yearling

conservation fish

Fishing together-2

Wolf pup peeks its head out of the grass

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