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Scientist and biologist hydro-biologist takes water samples for analysis.
A teenaged male fisherman enjoying a beautiful day out fishing for trout in Nova Scotia
Tensas River National Wildlife Refuge, Louisiana/USA February 22, 2020: U.S. Fish and Wildlife Service Department of Interior Tensas River National Wildlife Refuge noting the point at the refuge where a permit is required
A happy senior woman fly-fisher showing off her catch.
Doe deer running in southwest Colorado, in western USA of North America.
Close-up of a sign describing restoration and conservation efforts beside Black Earth Creek in Cross Plains, WI.
Senior Fly Fisherman on the Vipava river in Primorska,Slovenia,Europe,Nikon D850
An Asian/Japanese Euro Nymphing Fisherman on the Truckee River, Nevada.
The fisherman in Bishop Creek Canyon on a sunny day in Eastern Sierra, California
Rowing a boat to herd ducks on the river.
A happy senior woman fly-fisher showing off her catch.
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Wild bull elk in the extreme winter terrain of Rocky Mountain National Park near Estes Park, Colorado USA.
Terrace, Canada - July 20th 2017: An angler holding up a pink salmon caught on the Kitimat River, Skeena Region, British Columbia, Canada
Large mule deer buck in sagebrush
Cheerful mature female streamer is telling about her journey to river in foothills
Budapest, Hungary - March 29, 2019: Black and white photo of Elvis Presley park sign in Budapest.
Mule Deer Buck in East Central Idaho.
British Used Postage Stamp showing Brown Trout Fish, circa 1982
Deer stag (or buck) standing, looking at camera in thick lush high country forest of northern Colorado, in western USA, North America.
Fresh raw sea trout on black background
A senior woman fly fishing in the cold waters of Oak Creek, just north of Sedona, Arizona. The creek runs through a canyon carved out of rock.
CZECHOSLOVAKIA - CIRCA 1966: A stamp printed in Czechoslovakia from the \
Female tourist is trying to fish in mountain river
Great Sand Dunes National Park in the Wintertime 1986
Cancelled Stamp From The United States Featuring The White House
Dear in the woods
Wilderness Sign \
Free Images: "bestof:Biologist Rachel Louise Carson (1907-1964) began her career with the U.S. Fish and Wildlife Service but achieved fame and social influence with publication of"
Rachel Carson national wildlife refuge maine.jpg
Goosefare creek a division of the Rachel Carson national wildlife refuge.jpg
#RefugioOilResponse.jpg
Wildlife_biologist_conducts_a_gopher_tortoise_survey.jpg
Finding_fish.jpg
Wind turbines.jpg
Afro American young girl seated in lounge area.jpg
Biologist tracking Louisiana black bear.jpg
Biologist working on field outdoor work.jpg
Canada lynx kitten being measured by biologist.jpg
Aquatic biologist releases a threatened goldline darter.jpg
Man intently listening during class.jpg
Man taking notes on bird caught for banding.jpg
Desert tortoise turtle on desert rocks gopherus agassizii.jpg
Gopherus Agassizii desert tortoise habitat desert.jpg
Two females in forest walking trough high grass.jpg
Biologist talk with students on how to plant.jpg
Biologist works on board with a laptop.jpg
Student being shown by teacher how to correctly hold bird being prepared for banding.jpg
Teacher using paper bag and scales to weigh captured bird.jpg
Cape Thompson biologist at murre plot.jpg
Biologist in raft during a fish population survey.jpg
Biologist holding a gray bat at a gray bat survey site.jpg
Biologist check childrens plants in the schoolyard wetland area.jpg
Girl scouts in frog survey.jpg
Biologist instruct children on how to use tools for planting.jpg
Biologist talk to students on the how to plant aquatic plants.jpg
Biologist holds a newly hatched sea turtle.jpg
Female student with open tree identification book looking at tree leaves to identify species.jpg
Biologist show students how to place plants in the wetland areas.jpg
Girl with computer emerging technologies social media.jpg
The_Catch.jpg
Rachel_Louise_Carson_(1907-1964).jpg
Viola-shelly-shantz-award.jpg
Biologist in experimental agricultural field.jpg
Gabriele_Rabel_(b._1880).jpg
Cornelia_Maria_Clapp_(1849-1934),_sitting_at_desk.jpg
Arthur J. Altmeyer-crop.jpg
Dominic_Serres_the_Elder_-_The_Capture_of_Havana,_1762-_The_Morro_Castle_and_the_Boom_Defence_Before_the_Attack.jpg
Viola-Shelly-Shantz.jpg
John_Dryden,_poet,_playwright.jpg
Robert_McMorran,_U.S._Fish_and_Wildlife_Service.jpg
Agent cross and float plane at lake Louise.jpg
Captive_redfin_darter_(Etheostoma_whipplei).png
Manor home of Laudholm Farm, built in 1860. Wells, Maine LCCN2011633349.tif.tiff
Details,_details,_details,_life_is_full_of_details..jpg
A river full of education.jpg
Feeding_time!.jpg
A marsh within the Santa Ana National Wildlife Refuge, on the Rio Grande River border with Mexico in Hidalgo County, Texas LCCN2014630440.tif.tiff
A marsh within the Santa Ana National Wildlife Refuge, on the Rio Grande River border with Mexico in Hidalgo County, Texas LCCN2014630441.tif.tiff
Grassland within the Santa Ana National Wildlife Refuge, on the Rio Grande River border with Mexico in Hidalgo County, Texas LCCN2014630445.tif.tiff
Trees draped with Spanish moss within the Santa Ana National Wildlife Refuge, on the Rio Grande River border with Mexico in Hidalgo County, Texas LCCN2014630442.tif.tiff
Trees draped with Spanish moss within the Santa Ana National Wildlife Refuge, on the Rio Grande River border with Mexico in Hidalgo County, Texas LCCN2014630443.tif.tiff
Striped bass morone saxatilis fish.jpg
Looking_W_across_Columbia_Island_down_Memorial_Drive_at_Arlington_National_Cemetery_-_1930s.jpg
Selective_Service_System_Director_Alfred_Rascon.GIF
Richard_Morris_Titmuss_C.B.E.,_F.B.A.,_c1960s.jpg
Richard_Morris_Titmuss,_c1960s.jpg
John_Fletcher,_dramatist.jpg
John_Fletcher,_dramatist.jpg
William_Drummond_of_Hawthornden,_poet.jpg
John_Fletcher,_dramatist.jpg
COE Levin Hudson - Memphis TN.jpg
Sir_William_Muir_WDL11445.png
Supermarket_Singapore_exploited_due_to_Pricing_Error_6.jpg
Supermarket_Singapore_exploited_due_to_Pricing_Error_3.jpg
Supermarket_Singapore_exploited_due_to_Pricing_Error_1_(1).jpg
Supermarket_Singapore_exploited_due_to_Pricing_Error.jpg
Gazetteer_of_Zhongdu,_the_Middle_Capital_WDL4673.jpg
Supermarket_Singapore_exploited_due_to_Pricing_Error_5.jpg
Supermarket_Singapore_exploited_due_to_Pricing_Error_4.jpg
John_Dudley,_Duke_of_Northumberland,_father_of_Robert_Dudley,_father-in-law_of_Lady_Jane_Grey.jpg
Ben_Johnson,_Dramatist,_Poet,_and_Actor.jpg
Ben_Jonson,_dramatist,_poet,_and_actor.jpg
George_Buchanan,_humanist_and_scholar.jpg
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