4,179 Free Images of Threatening

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

Ash Meadows Speckled Dace-2

Biologists show length of Gulf sturgeon in river-4

Biologists show length of Gulf sturgeon in river-3

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

Santa Monica Mountains dudleya

Biologist stocks Gila trout into Mineral Creek-1

Wading fisherman

Kendall Warm Springs dace-1

Biologist shows front view of Gulf sturgeon in river-1

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

Karner blue butterfly on hawkweed

butterfly animals

Pallid Sturgeon-1

underwater fish

Biologists tagging Delmarva Peninsula fox squirrels

education mammals

Biologists show length of Gulf sturgeon in river-2

Fisherman on the Columbia River shore

Razorback sucker-1

Hatchling Gopher tortoises emerging from burrow to bask

reptiles animals

Pallid Sturgeon-1

Ash Meadows Amargosa pupfish-1

Biologists weigh a Gulf sturgeon in river

Biologists show length of Gulf sturgeon in river-6

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

Island marble butterfly-5

landscape nature

Delmarva Peninsula fox squirrel-1

animals mammals

Dudley Bluffs bladderpod

Candy darter

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

Razorback sucker-2

Biologist carrries a sedated Canada lynx

Ash Meadows Amargosa pupfish-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

Pair of Wood storks-2

Endangered Hawaiian monk seal and Laysan albatross

Mission Blue butterfly-1

Razorback sucker-1

FWS biologist observes captive Devils Hole pupfish-2

Yakama tribal member with traditional dip net

Candy darter-1

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

Razorback sucker

Razorback sucker-1

Candy darter-1

Hawksbill sea turtle

Yakama tribal member with dip net pully system

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