3,975 Free Images of Threatening

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

Ash Meadows Amargosa pupfish-1

Hine's emerald dragonfly larvae in shallow water-4

arthropod animals

Juvenile Gopher tortoise after digging burrow

Swamp Pink

butterfly animals

Island marble butterfly-5

landscape nature

Jan Asselijn - The Threatened Swan - WGA01030

the threatened swan by jan asselijn roeloffzen & hübner

American paddlefish and Pallid sturgeon

underwater fish

Mountain golden heather blooms

Gray wolf-2

California Condor released at Hopper Mountain NWR

landscape mountain

Pallid sturgeon-3

Candy darter-1

Biologist shows front view of Gulf sturgeon in river-2

Razorback sucker-1

Biologist stocks Gila trout into Mineral Creek

Photographer captures anglers with their fresh catch

Pallid sturgeon juvenile yearling-1

Hawksbill sea turtle

Green Sea Turtles

Loading Gila Trout onto Fish transportation truck

Alexander the Great Threatened by His Father sc1044

alexander the great threatened by his father (donato creti)

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

Cougar

Releasing a captured lynx

Fishing near a small town along the Columbia River-2

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

Newly collared female lynx recovers from sedation

wildlife animals

Razorback sucker-1

Ash Meadows gumplant

Silver fox in silhouette

Measuring a transect

landscape water

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

Newly collared female lynx-1

wildlife animals

Silver fox pauses in the snow

Fishing near a small town along the Columbia River-3

Female Canada lynx

Captive Devils Hole pupfish-1

Biologist stocks Gila trout in Mineral Creek-2

Captive Devils Hole pupfish-3

Front paw of a sedated female lynx

animals mammals

Atlantic salmon parr in Cobble Habitat

FWS divers search for salamanders in Spring Lake-2

Lyon's pentacheata

Collared female Canada lynx

wildlife animals

Collared Canada lynx crosses the frozen river

Ash Meadows Amargosa pupfish-1

Spring-loving centaury-6

Nihoa Millerbird Translocation-3

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

Newly collared female lynx

wildlife animals

Ash Meadows Amargosa pupfish-6

Piping plover chick and the big wave

Female lynx fitted with GPS collar-1

wildlife animals

Female lynx fitted with GPS collar-1

wildlife animals

Female Canada lynx heads back to the forest

wildlife animals

Ash Meadows Amargosa pupfish-3

Bonytail Chub

ring-tailed lemur

Piping plover chick

Delmarva Peninsula fox squirrel-1

Collared adult male Canada lynx

wildlife animals

1601 - 1700 of 3,975 Next page

/ 40