3,975 Free Images of Threatening

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

Red Knot banding-3

Biologist shows front view of Gulf sturgeon in river-2

Santa Monica Mountains dudleya

Biologists search for Fountain Darter-2

Display at National Conservation Training Center

Biologist shows front view of Gulf sturgeon in river-1

Biologists show length of Gulf sturgeon in river-1

Biologist shows front view of Gulf sturgeon in river-3

Recreational boating along the Columbia River-2

Working on a sedated lynx in the field

Ash Meadows Amargosa pupfish-1

Barrier protects mountain yellow-legged frogs from nonnative tro

landscape water

Southern sea otter with her pup in Moss Landing

Yakama tribal member with dip net pully system

Raft of Southern Sea Otters

Biologists secure boat along shoreline

Rafinesque's big-eared bat

Willamette Daisy

Ash Meadows Amargosa pupfish-1

Karner blue butterfly on hawkweed

butterfly animals

Recreational boating on the Columbia River

Devils Hole pupfish-2

Wyoming toad-2

Fishing for salmon on the Columbia River

Biologists show length of Gulf sturgeon in river-1

Laysan Duck pair on Eastern Island on Midway Atoll

Biologist shows front view of Gulf sturgeon in river-3

Fisherman on the Columbia River shore

Red wolf on refuge-6

USFWS biologist nets fountain darters in the San Marcos River-7

Dip netting a salmon in the Klickitat River-4

Biologists show length of Gulf sturgeon in river-1

Female lynx looks around

California Least tern

Chucky Madtom

Gila Trout Transport-1

military aircraft

Pallid sturgeon fry

Laysan duck

Dudley Bluffs twinpod flowers and ant

Biologist shows side view of a Gulf sturgeon in river

Ash Meadows Speckled Dace-2

Dudley Bluffs bladderpod

Pallid Sturgeon-1

Pallid Sturgeon-4

Snorkeler searches for hellbenders

Young couple fishes on the Columbia River

Hawaiian monk seal-1

landscape water

FWS biologist observes captive Devils Hole pupfish-3

Pair of Wood storks-2

Biologists show length of Gulf sturgeon in river-1

Snorkeling for Eastern hellbenders

FWS biologist observes captive Devils Hole pupfish-3

Brown Noddy perched on a piece of wood

Biologists in boat study Gulf sturgeon in river-1

Biologist carrries a sedated Canada lynx

Pallid Sturgeon-3

Pallid Sturgeon-2

Candy darter-1

underwater fish

Razorback sucker-1

FWS biologist observes captive Devils Hole pupfish-1

Measuring the canines of a sedated lynx

mammals monitor

Bengal Tiger cub

wildlife animals

Razorback sucker-2

Hatchling Gopher tortoises emerging from burrow to bask

reptiles animals

Traditional dip netting-4

Florida manatee-2

Kenwood Marsh checkermallow

Florida manatee-1

Biologists search for Fountain Darter-1

Black-footed Ferret-1

wildlife mammals

Coastal sage scrub and oak riparian woodlands

Recreational boating on the Columbia River-1

Fishing near a small town along the Columbia River

Black-footed Ferret reintroduction site

landscape mammals

Ash Meadows Amargosa pupfish-3

Biologists in boat study Gulf sturgeon in river

Ash Meadows Amargosa pupfish-1

Indiana bat-1

landscape water

Green sea Turtle

Candy darter-1

Fishing on the Columbia River-1

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

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