4,179 Free Images of Threatening

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

Pagosa skyrocket flowers

Man holds Trumpeter swan during demonstration

Juvenile Gopher tortoise after digging burrow

Biologists in boat study Gulf sturgeon in river-1

Florida manatee-2

Pallid Sturgeon-4

Green sea Turtle

Young couple fishes on the Columbia River

Ash Meadows Amargosa pupfish-1

Hine's emerald dragonfly larvae in shallow water-4

arthropod animals

Ash Meadows Amargosa pupfish-2

Snorkeler searches for hellbenders

Pallid Sturgeon-2

FWS biologist observes captive Devils Hole pupfish-3

Snorkeling for Eastern hellbenders

FWS biologist observes captive Devils Hole pupfish-3

Southern Sea otter settling in for a nap

animals mammals

FWS biologist observes captive Devils Hole pupfish-3

Razorback sucker-2

Juvenile pallid sturgeon -5

FWS biologist observes captive Devils Hole pupfish-1

Biologists show length of Gulf sturgeon in river-1

Biologists show length of Gulf sturgeon in river-1

Anglers on the Columbia River shoreline

Candy darter-6

Two year old pallid sturgeon

conservation fish

Laysan duck

Chucky Madtom

Biologist shows side view of a Gulf sturgeon in river

Gila Trout Transport-1

military aircraft

Juvenile pallid sturgeon yearling-2

conservation fish

Hatchling Gopher tortoise basking on rye grass

reptiles animals

Dip netting a salmon in the Klickitat River-4

Devils Hole pupfish-2

Santa Monica Mountains dudleya-4

Biologists search for Fountain Darter-2

Red Knot banding-3

Young couple fishing

Biologists show length of Gulf sturgeon in river-1

Biologist shows front view of Gulf sturgeon in river-2

Biologist shows side view of Gulf sturgeon in river-3

Biologists display spine of Gulf sturgeon in river

Preparing a small GPS satellite collar for the sedated lynx

mammals monitor

Kenwood Marsh checkermallow

Fishing on the Columbia River-3

Candy darter-1

Traditional dip netting-1

Brown Noddy perched on a piece of wood

Wolf collaring-2

Biologists in boat study Gulf sturgeon in river-1

FWS biologist observes captive Devils Hole pupfish-2

Candy darter-1

underwater fish

Biologists search for Fountain Darter-1

Pallid Sturgeon-1

Captive Devils Hole pupfish-1

Southern Sea otter with gull

Pallid Sturgeon-3

Hawaiian monk seal-1

landscape water

Delmarva Peninsula fox squirrel pit tagging

maryland mammals

Measuring the canines of a sedated lynx

mammals monitor

Bengal Tiger cub

wildlife animals

Biologist shows front view of Gulf sturgeon in river-2

American Crocodile and American Alligator

Southern sea otter with her pup in Moss Landing

Yakama tribal member with traditional dip net-4

Canyon at San Diego National Wildlife Refuge

Working on a sedated lynx in the field

Biologist shows front view of Gulf sturgeon in river-3

American paddlefish and Pallid sturgeon

underwater fish

Pallid Sturgeon-13

Raft of Southern Sea Otters

Public access fishing area

Candy darter

Dudley Bluffs bladderpod

Biologist carrries a sedated Canada lynx

Ash Meadows Amargosa pupfish-1

Pair of Wood storks-2

Endangered Hawaiian monk seal and Laysan albatross

Mission Blue butterfly-1

Razorback sucker-1

Island marble butterfly-5

landscape nature

Delmarva Peninsula fox squirrel-1

animals mammals

Candy darter-1

FWS biologist observes captive Devils Hole pupfish-2

Biologist shows front view of Gulf sturgeon in river-1

Black-footed Ferret release site

landscape travel

Traditional dip netting-4

Florida manatee-1

Fishing on the Columbia River-1

Swamp Pink

butterfly animals

Biologists display spine of Gulf sturgeon in river-2

Biologists secure boat along shoreline-2

FWS biologist observes captive Devils Hole pupfish-2

Yakama tribal member with traditional dip net

Razorback sucker-2

Southern Sea otter with green crab

Barrier protects mountain yellow-legged frogs from nonnative tro

landscape water

Biologists deploy a GPS elk collar on a cow elk

Willamette Daisy

California Condor released at Hopper Mountain NWR

landscape mountain

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