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See our science through the images below.
USGS researcher Jennifer Agee taking surface sediment oxidation-reduction and pH measurements at Crissy Marsh, a vegetated saltmarsh near the Golden Gate Bridge (background) in San Francisco, CA. Photographer: L. Windham-Myers.
USGS researcher Jennifer Agee taking surface sediment oxidation-reduction and pH measurements at Crissy Marsh, a vegetated saltmarsh near the Golden Gate Bridge (background) in San Francisco, CA. Photographer: L. Windham-Myers.
Large adult
A section of the Blue Ridge Parkway in North Carolina with many fall colors underway.
A section of the Blue Ridge Parkway in North Carolina with many fall colors underway.
Cross section of a sagittal otolith from a juvenile Chinook salmon 79 days after emergence. The letters represent: H = hatch, E = emergence, FF = first feed, FW = freshwater residence, TDCK = tidal delta check, and D = tidal delta residence (40x objective).
Cross section of a sagittal otolith from a juvenile Chinook salmon 79 days after emergence. The letters represent: H = hatch, E = emergence, FF = first feed, FW = freshwater residence, TDCK = tidal delta check, and D = tidal delta residence (40x objective).
A pasture and a bucolic country lane near Lake Glenville, North Carolina.
A pasture and a bucolic country lane near Lake Glenville, North Carolina.
A pasture and a bucolic country lane near Lake Glenville, North Carolina.
A pasture and a bucolic country lane near Lake Glenville, North Carolina.
A pasture and a bucolic country lane near Lake Glenville, North Carolina.
A pasture and a bucolic country lane near Lake Glenville, North Carolina.
This tree farm in the mountains of western North Carolina generates income forits owners each year during North America's December holiday seasons.
This tree farm in the mountains of western North Carolina generates income forits owners each year during North America's December holiday seasons.
Members of the Nisqually tribe and U.S. Fish and Wildlife Service setting a beach seine in the Nisqually Reach of Puget Sound.
Members of the Nisqually tribe and U.S. Fish and Wildlife Service setting a beach seine in the Nisqually Reach of Puget Sound.
This tree farm in the mountains of western North Carolina generates income for its owners each year during North America's December holiday seasons.
This tree farm in the mountains of western North Carolina generates income for its owners each year during North America's December holiday seasons.
This tree farm in the mountains of western North Carolina generates income for its owners each year during North America's December holiday seasons.
This tree farm in the mountains of western North Carolina generates income for its owners each year during North America's December holiday seasons.
This tree farm in the mountains of western North Carolina generates income for its owners each year during North America's December holiday seasons.
This tree farm in the mountains of western North Carolina generates income for its owners each year during North America's December holiday seasons.
Members of the Nisqually tribe and U.S. Fish and Wildlife Service setting a beach seine in the Nisqually Reach of Puget Sound.
Members of the Nisqually tribe and U.S. Fish and Wildlife Service setting a beach seine in the Nisqually Reach of Puget Sound.
Field of grasses tentatively identified as sorghum.
Field of grasses tentatively identified as sorghum.
Moss-hung live oaks along the Suwannee River at White Springs.
Moss-hung live oaks along the Suwannee River at White Springs.
Numbers of Wood Storks are declining
Numbers of Wood Storks are declining
A kelp greenling fish swimming above a seafloor of mixed gravel, cobble and rock outcrop with scattered shell. Fish is approx. 20 cm (8 inches) long. Image acquired 1 km (0.62 miles) offshore Half Moon Bay, California at a depth of 14 meters (46 ft). Also in the image are encrusting sponges, red algae (seaweed), and orange cup corals.
A kelp greenling fish swimming above a seafloor of mixed gravel, cobble and rock outcrop with scattered shell. Fish is approx. 20 cm (8 inches) long. Image acquired 1 km (0.62 miles) offshore Half Moon Bay, California at a depth of 14 meters (46 ft). Also in the image are encrusting sponges, red algae (seaweed), and orange cup corals.
Three sea stars on a rock, surrounded by a sandy seafloor littered with broken shells. Each sea star is approx. 10 - 15 cm (4-6 inches) across. Image acquired 4.5 km (3 miles) offshore Pigeon Point, southern San Mateo County, California at a depth of 52 meters.
Three sea stars on a rock, surrounded by a sandy seafloor littered with broken shells. Each sea star is approx. 10 - 15 cm (4-6 inches) across. Image acquired 4.5 km (3 miles) offshore Pigeon Point, southern San Mateo County, California at a depth of 52 meters.
Two bull elk fighting in a lake.
Two bull elk fighting in a lake.
Two bull elk fighting in a lake.
Two bull elk fighting in a lake.
Tidewater goby collected from Rodeo Lagoon in Golden Gate National Recreation Area, CA.
Tidewater goby collected from Rodeo Lagoon in Golden Gate National Recreation Area, CA.