19.009 Foto gratuite per Usfws

acqua ricerca scientifica virginia occidentale pesce reptilia barca attrezzatura scienza animali florida

Marine Mammal Stranding Course at NCTC-2

animali scienza

Carr Creek cutthroat trout

Employee displays banded Hawai‘i creeper

animali selvatici uccelli

Biologist shows front view of Gulf sturgeon in river

attrezzatura barca

Researchers track the movement of endangered Gray bats

pipistrelli mammiferi

Marine Mammal Stranding Course at NCTC-1

Biologist in boat study Gulf sturgeon in river-1

attrezzatura barca

Marine Mammal Stranding Course at NCTC-1

Biologists dip net Gila trout out of tank into buckets-5

nuovo messico partenariato

Marine Mammal Stranding Course at NCTC-2

Biologists spawning trout-2

Delmarva Peninsula fox squirrel pit tagging-1

mammiferi maryland

Fish Nutritionist checks quality control of fish food-1

attrezzatura pesce

Biologist stocks Gila trout into Mineral Creek-4

Marine Mammal Stranding Course at NCTC-3

Marine Mammal Stranding Course at NCTC-4

Cryogenic tanks for Pallid sturgeon sperm-1

Marine Mammal Stranding Course at NCTC-2

Hatchling Gopher tortoise feeding-2

reptilia animali

Marine Mammal Stranding Course at NCTC-1

animali scienza

Marine Mammal Stranding Course at NCTC-4

Marine Mammal Stranding Course at NCTC-4

Cryogenic tanks for Pallid sturgeon sperm-2

Kids learning about the Monarch butterfly-4

gioventù insetti

Aerial view of Selawik National Wildlife Refuge-7

cambiamento climatico alaska

Marine Mammal Stranding Course at NCTC-2

Biologist spawning trout-1

Marine Mammal Stranding Course at NCTC-2

Snorkeler searches for hellbenders

FWS biologist observes captive Devils Hole pupfish-3

USFWS Fisheries crew in boat preparing for lake sturgeon field work-1

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

animali selvatici uccelli

Biologists in boat study Gulf sturgeon in river-1

Biologist conducts a swim test on a large Rainbow trout-2

attrezzatura pesce

Biologist carrries a sedated Canada lynx

mammiferi inverno

FWS biologist observes captive Devils Hole pupfish-1

Measuring the canines of a sedated lynx

mammiferi monitor

Marine Mammal Stranding Course at NCTC-3

animali scienza

Hatchling Gopher tortoises emerging from burrow to bask

reptilia animali

New shed

Biologists search for Fountain Darter-1

Biologist shows front view of Gulf sturgeon in river-3

Fishery biologist surveys a American paddlefish

sott'acqua pesce

Working on a sedated lynx in the field

mammiferi inverno

Aerial view of Selawik National Wildlife Refuge-2

cambiamento climatico alaska

Biologist working at Leadville National Fish Hatchery-3

Ohio River Islands biologist, Patricia Morrison, drives a boat on the river

Red spruce restoration scenic

paesaggio albero

Biologists secure boat along shoreline

Rafinesque's big-eared bat

pipistrelli mammiferi

Tagged Monarch and child-1

farfalla animali

Biologist conducts a swim test on a large Rainbow trout-1

Close-up of hatchery fish

sott'acqua pesce

Wyoming toad-2

Marine Mammal Stranding Course at NCTC-1

Tagged Monarch and child-2

farfalla animali

Biologists show length of Gulf sturgeon in river-1

Tagged Monarch and child-2

farfalla animali

Tagged Monarch and child-1

farfalla animali

Biologist teaches children about the Monarch butterfly-1

gioventù insetti

Biologist shows front view of Gulf sturgeon in river-3

attrezzatura barca

Tagged Monarch and child-1

farfalla animali

Fish Nutritionist checks quality control of fish food-1

Biologist teaches children about the Monarch butterfly-2

gioventù insetti

Tagged Monarch and child-1

farfalla animali

Biologist conducts a swim test on a large Rainbow trout-2

Biologists show length of Gulf sturgeon in river-1

Released Canada lynx stretches into a bound

animali selvatici animali

Female lynx looks around

mammiferi inverno

Close-up Monarch butterfly-2

farfalla animali

Marine Mammal Stranding Course at NCTC-4

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-2

Biologist shows side view of a Gulf sturgeon in river

Collared Canada lynx pauses for a moment

mammiferi inverno

Biologist teaches children about the Monarch butterfly-4

gioventù insetti

Biologist working at Leadville National Fish Hatchery-1

Marine Mammal Stranding Course at NCTC-2

veicolo scienza

Gray wolf-2

animali inverno

Aerial view of Selawik National Wildlife Refuge-4

paesaggio alaska

Biologist shows front view of Gulf sturgeon in river-2

Biologist stocks Gila trout into Mineral Creek

Directorate Fellowship Program intern holds a Laughing gull chick

massachusetts uccelli

Black-footed Ferret-1

animali selvatici mammiferi

USFWS Fisheries crew in boat preparing for lake sturgeon field work-4

USFWS Fisheries crew in boat preparing for lake sturgeon field work-9

USFWS Fisheries crew in boat preparing for lake sturgeon field work-2

Biologists in boat study Gulf sturgeon in river

FWS biologist observes captive Devils Hole pupfish-2

Biologist shows front view of Gulf sturgeon in river-2

Biologists secure boat along shoreline-2

Marine Mammal Stranding Course at NCTC-1

veicolo scienza

Biologist working at Leadville National Fish Hatchery

Biologists weigh a Gulf sturgeon in river

FWS biologist observes captive Devils Hole pupfish-2

Delmarva Peninsula fox squirrel-1

mammiferi animali

Biologists in boat study Gulf sturgeon in river-1

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