Student dusts the Model A Ford coupe used by USGS scientists from the 1930s to 1965.
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In the Driver’s Seat
Student dusts the Model A Ford coupe used by USGS scientists from the 1930s to 1965.
Old-growth ponderosa pine in the Monument Canyon Research Natural Area
Old-growth ponderosa pine in the Monument Canyon Research Natural AreaOld-growth ponderosa pine in the Monument Canyon Research Natural Area, New Mexico.
Old-growth ponderosa pine in the Monument Canyon Research Natural Area
Old-growth ponderosa pine in the Monument Canyon Research Natural AreaOld-growth ponderosa pine in the Monument Canyon Research Natural Area, New Mexico.
USGS biologist weighs a newborn caribou calf in Alaska
USGS biologist weighs a newborn caribou calf in AlaskaUSGS biologist Gretchen Roffler weighs a newborn caribou calf in Denali National Park, Alaska.
USGS biologist weighs a newborn caribou calf in Alaska
USGS biologist weighs a newborn caribou calf in AlaskaUSGS biologist Gretchen Roffler weighs a newborn caribou calf in Denali National Park, Alaska.
Grizzly bear caching an elk carcass in Grand Teton National Park
Grizzly bear caching an elk carcass in Grand Teton National ParkA grizzly bear has cached an elk carcass in Grand Teton National Park. Scientists used DNA from hair samples collected from barbed wire to estimate whether the availability of carcasses associated with an elk hunting season resulted in temporary immigration of grizzly bears.
Grizzly bear caching an elk carcass in Grand Teton National Park
Grizzly bear caching an elk carcass in Grand Teton National ParkA grizzly bear has cached an elk carcass in Grand Teton National Park. Scientists used DNA from hair samples collected from barbed wire to estimate whether the availability of carcasses associated with an elk hunting season resulted in temporary immigration of grizzly bears.
Laboratory set up with water samples.
Experimental laboratory setup to study uranium in aquatic organisms. Bottles contain artificial freshwater amended with dissolved organic matter and a range of uranium concentrations.
Experimental laboratory setup to study uranium in aquatic organisms. Bottles contain artificial freshwater amended with dissolved organic matter and a range of uranium concentrations.
Collecting permafrost information on the Tahana River
Collecting permafrost information on the Tahana RiverDavid Pelunis-Messier and Milton Roberts navigating on the Tanana River, a main tributary of the Yukon River. The two are taking part in the Yukon River permafrost study.
Collecting permafrost information on the Tahana River
Collecting permafrost information on the Tahana RiverDavid Pelunis-Messier and Milton Roberts navigating on the Tanana River, a main tributary of the Yukon River. The two are taking part in the Yukon River permafrost study.
Scientist Gathering Data
Karen Nelson (USFWS) acquiring geophysical data amidst a naturally occurring plant (Salicornia rubra) in northeastern Montana.
Karen Nelson (USFWS) acquiring geophysical data amidst a naturally occurring plant (Salicornia rubra) in northeastern Montana.
Permafrost Loss Dramatically Changes Yukon River Chemistry and Hydrolo
Permafrost Loss Dramatically Changes Yukon River Chemistry and HydroloYukon River freezing up at Pilot Station, AK
Permafrost Loss Dramatically Changes Yukon River Chemistry and Hydrolo
Permafrost Loss Dramatically Changes Yukon River Chemistry and HydroloYukon River freezing up at Pilot Station, AK
Whitefish drying on a fish rack in Pilot Station, AK
Whitefish drying on a fish rack in Pilot Station, AKWhitefish drying on a fish rack in Pilot Station, AK, in the Yukon River Basin.
Whitefish drying on a fish rack in Pilot Station, AK
Whitefish drying on a fish rack in Pilot Station, AKWhitefish drying on a fish rack in Pilot Station, AK, in the Yukon River Basin.
Pallid Sturgeon
The pallid sturgeon is an endangered riverine sturgeon with historical distribution restricted to parts of the Yellowstone, Missouri, Mississippi, and Atchafalaya Rivers. Although rare, pallid sturgeon in the lower Mississippi River appear to be naturally recruiting, and information about habitat use is important to conserve this species.
The pallid sturgeon is an endangered riverine sturgeon with historical distribution restricted to parts of the Yellowstone, Missouri, Mississippi, and Atchafalaya Rivers. Although rare, pallid sturgeon in the lower Mississippi River appear to be naturally recruiting, and information about habitat use is important to conserve this species.
Barred Owl
Barred owls like this one were most strongly associated with patches of large hardwood and conifer trees in relatively flat areas along streams.
Barred owls like this one were most strongly associated with patches of large hardwood and conifer trees in relatively flat areas along streams.
Pallid Sturgeon
An adult pallid sturgeon, an endangered species.
An adult pallid sturgeon, an endangered species.
Burmese python hatchling
Non-native Burmese pythons have established a breeding population in South Florida and are one of the most concerning invasive species in Everglades National Park. This photograph is of a Burmese python hatchling
Non-native Burmese pythons have established a breeding population in South Florida and are one of the most concerning invasive species in Everglades National Park. This photograph is of a Burmese python hatchling
Iiwi on Mamane
The Hawaiian ‘I‘iwi, a native forest bird species only found in the Hawaiian Islands.
The Hawaiian ‘I‘iwi, a native forest bird species only found in the Hawaiian Islands.
Mayfly in Idaho
A recently emerged mayfly collected downstream of the Cinnabar mercury mine site in central Idaho.
A recently emerged mayfly collected downstream of the Cinnabar mercury mine site in central Idaho.
USGS Volunteer Student at the Smithsonian Natural History Museum
USGS Volunteer Student at the Smithsonian Natural History MuseumThe Smithsonian Natural History Museum offers hands-on learning experiences.
USGS Volunteer Student at the Smithsonian Natural History Museum
USGS Volunteer Student at the Smithsonian Natural History MuseumThe Smithsonian Natural History Museum offers hands-on learning experiences.
Researcher takes winter water chemistry samples on the Yukon River
Researcher takes winter water chemistry samples on the Yukon RiverResearcher Carol Hasburgh taking winter water chemistry samples on the Yukon River for a permafrost loss study.
Researcher takes winter water chemistry samples on the Yukon River
Researcher takes winter water chemistry samples on the Yukon RiverResearcher Carol Hasburgh taking winter water chemistry samples on the Yukon River for a permafrost loss study.
USGS scientist places radiocollar on a sedated bull caribou in Alaska
USGS scientist places radiocollar on a sedated bull caribou in AlaskaUSGS scientist Layne Adams places a radiocollar on a sedated large bull caribou in Denali National Park, Alaska.
USGS scientist places radiocollar on a sedated bull caribou in Alaska
USGS scientist places radiocollar on a sedated bull caribou in AlaskaUSGS scientist Layne Adams places a radiocollar on a sedated large bull caribou in Denali National Park, Alaska.
Monarchs
The Eastern, migratory population of monarch butterflies has declined by about 80 percent over the last decade.
The Eastern, migratory population of monarch butterflies has declined by about 80 percent over the last decade.
Colony of bats.
Bats benefit from maintaining a close-knit roosting group because they increase reproductive success and it is important for rearing pups.
Bats benefit from maintaining a close-knit roosting group because they increase reproductive success and it is important for rearing pups.
Heading out to do field work for a permafrost study in the Yukon River
Heading out to do field work for a permafrost study in the Yukon RiverHeading out to do field work for a permafrost loss study in the Yukon River Basin.
Heading out to do field work for a permafrost study in the Yukon River
Heading out to do field work for a permafrost study in the Yukon RiverHeading out to do field work for a permafrost loss study in the Yukon River Basin.