4,010 Free Images of Threatening

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

FWS biologist observes captive Devils Hole pupfish-2

Biologist shows front view of Gulf sturgeon in river-2

Biologists secure boat along shoreline-2

Southern Sea otter settling in for a nap

animals mammals

Candy darter

American Crocodile and American Alligator

Razorback sucker-1

Biologists weigh a Gulf sturgeon in river

Razorback sucker-2

Ash Meadows Amargosa pupfish-1

FWS biologist observes captive Devils Hole pupfish-2

Delmarva Peninsula fox squirrel-1

animals mammals

Biologists in boat study Gulf sturgeon in river-1

Delmarva Peninsula fox squirrel pit tagging

maryland mammals

Yakama tribal member with traditional dip net

Ash Meadows Amargosa pupfish-2

FWS biologist observes captive Devils Hole pupfish-3

Captive Devils Hole pupfish-1

Man holds Trumpeter swan during demonstration

Ash Meadows Amargosa pupfish-1

Hine's emerald dragonfly larvae in shallow water-4

arthropod animals

Green sea Turtle

Juvenile Gopher tortoise after digging burrow

Island marble butterfly-5

landscape nature

Swamp Pink

butterfly animals

Releasing a captured lynx

Young couple releases a Fall Salmon-1

Ash Meadows Amargosa pupfish-1

Attaching a small satellite GPS collar on a sedated lynx

Angler holds a Fall Chinook salmon

Silver fox in silhouette

Newly collared female lynx recovers from sedation

wildlife animals

Fishing near a small town along the Columbia River-2

Razorback sucker-1

Ash Meadows gumplant

Measuring a transect

landscape water

Green Sea Turtles

Loading Gila Trout onto Fish transportation truck

Public access fishing area

Razorback sucker

Pallid Sturgeon-13

Delmarva Peninsula fox squirrel pit tagging-1

maryland mammals

Canyon at San Diego National Wildlife Refuge

Barrier protects mountain yellow-legged frogs from nonnative tro-6

landscape water

Biologists deploy a GPS elk collar on a cow elk

Yakama tribal member with traditional dip net-4

Fishing near a small town along the Columbia River-2

Candy darter-1

Southern Sea otter with green crab

Two year old pallid sturgeon

Pallid Sturgeon-1

FWS divers search for salamanders in Spring Lake-2

Silver fox pauses in the snow

Fishing near a small town along the Columbia River-3

Newly collared female lynx-1

wildlife animals

Biologist stocks Gila trout in Mineral Creek-2

Female Canada lynx

Captive Devils Hole pupfish-3

Front paw of a sedated female lynx

animals mammals

Atlantic salmon parr in Cobble Habitat

Captive Devils Hole pupfish-1

Lyon's pentacheata

Cougar

Captive Devils Hole pupfish-3

Newly captured and sedated Canada lynx

Pleasant pines

Biologists continually monitor the lynx

Detail of a predator's eye

wildlife animals

Service biologist,Claire Ellwanger, counts green pitcher plants

Biologists tagging Delmarva Peninsula fox squirrels-2

Ash Meadows Amargosa pupfish-1

Collared lynx exits the trap

wildlife animals

Captive Devils Hole pupfish-5

Captive Devils Hole pupfish-2

Biologist carefully moves the sedated lynx to a recovery position

Ash Meadows Amargosa pupfish-1

Natural resource professionals looking for Tidewater Goby

Wood stork-1

Cave opening at Carters Cave-3

Bonytail Chub

Female lynx fitted with GPS collar-1

wildlife animals

Ash Meadows Amargosa pupfish-3

Piping plover chick and the big wave

Female lynx fitted with GPS collar-1

wildlife animals

Female Canada lynx heads back to the forest

wildlife animals

ring-tailed lemur

Collared female Canada lynx

wildlife animals

Collared Canada lynx crosses the frozen river

Ash Meadows Amargosa pupfish-1

Spring-loving centaury-6

Female lynx fitted with GPS collar

wildlife animals

Endangered Tobusch fishhook cactus flower

Pallid sturgeon-1

Loggerhead Sea Turtle tracks

Ash Meadows Amargosa pupfish-1

Photographer captures anglers with their fresh catch-1

Female Canada lynx-3

Delmarva Peninsula fox squirrel pit tagging-2

Female lynx heads back to the forest

wildlife animals

Female Canada lynx-6

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