Pair of pronghorn in a snow-covered prairie near Medicine Bow, Wyoming. Pronghorn are mainly found in the U.S., with Wyoming being particularly important to this species.
Images
See our science through the images below.
Filter Total Items: 3529
Pair of pronghorn
Pair of pronghorn in a snow-covered prairie near Medicine Bow, Wyoming. Pronghorn are mainly found in the U.S., with Wyoming being particularly important to this species.
Sagebrush ecosystem
USGS researchers are assessing the spread of invasive annual grasses in sagebrush and grassland ecosystems of Montana, North Dakota, and South Dakota.
USGS researchers are assessing the spread of invasive annual grasses in sagebrush and grassland ecosystems of Montana, North Dakota, and South Dakota.
Adult silver phase American Eel
A silver-phase American Eel in a northeastern river begins migrating downstream to the ocean to spawn in the Sargasso Sea. The migration can span hundreds of kilometers in freshwater rivers and thousands of kilometers at sea.
A silver-phase American Eel in a northeastern river begins migrating downstream to the ocean to spawn in the Sargasso Sea. The migration can span hundreds of kilometers in freshwater rivers and thousands of kilometers at sea.
Release of radio-tagged silver phase American Eel
Radio-tagged silver phase American Eels being released for a CAFRL telemetry study of downstream passage of eels at hydroelectric dams on the Shetucket River, Connecticut.
Radio-tagged silver phase American Eels being released for a CAFRL telemetry study of downstream passage of eels at hydroelectric dams on the Shetucket River, Connecticut.
Eel airlift bypass prototype
Prototype design of an airlift developed at CAFL to transport downstream migrant eels through a bypass pipe and away from turbine intakes. The airlift design passes eels as well as a conventional siphon or gravity pipe.
Prototype design of an airlift developed at CAFL to transport downstream migrant eels through a bypass pipe and away from turbine intakes. The airlift design passes eels as well as a conventional siphon or gravity pipe.
Ohia forest with dieback
Aerial photo of ʻōhiʻa forest on Hawaii Island, including dieback resulting from Rapid Ohia Death.
Aerial photo of ʻōhiʻa forest on Hawaii Island, including dieback resulting from Rapid Ohia Death.
Ohia seedlings before planting
ʻŌhiʻa seedlings in dibble tubes, prior to planting.
ʻŌhiʻa seedlings in dibble tubes, prior to planting.
Scientists collect alpine plant species and distribution data in GNP
Scientists collect alpine plant species and distribution data in GNPScientists collect alpine plant species and distribution data to complete a GLORIA site inventory on the summit of Seward Mountain, Glacier National Park, Montana.
Scientists collect alpine plant species and distribution data in GNP
Scientists collect alpine plant species and distribution data in GNPScientists collect alpine plant species and distribution data to complete a GLORIA site inventory on the summit of Seward Mountain, Glacier National Park, Montana.
Barred tiger salamander (paedomorph)
Barred Tiger Salamander Paedomorph, Cottonwood Lake Study Area, North Dakota. Some barred tiger salamanders never metamorphose and keep their larval features (e.g., gills, finlike tail) their whole lives as reproductively mature adults known as paedomorphs, which can grow to be 14 inches in length.
Barred Tiger Salamander Paedomorph, Cottonwood Lake Study Area, North Dakota. Some barred tiger salamanders never metamorphose and keep their larval features (e.g., gills, finlike tail) their whole lives as reproductively mature adults known as paedomorphs, which can grow to be 14 inches in length.
Grass carp larvae
These images show grass carp larvae from the Maumee River. Characteristics of larval grass carp include overall length (left), skeletal muscle development (center) and presence of an eye spot that lacks pigmentation (right; pigment starting to develop on lower eye).
These images show grass carp larvae from the Maumee River. Characteristics of larval grass carp include overall length (left), skeletal muscle development (center) and presence of an eye spot that lacks pigmentation (right; pigment starting to develop on lower eye).
Pollinator Flight
Bumble bee landing on a cone flower provided by USGS Ecosystems Mission Area.
Bumble bee landing on a cone flower provided by USGS Ecosystems Mission Area.
Eel electrosensitivity test apparatus
Apparatus used to test the sensitivity of eels to low-voltage pulsed DC electric fields. Knowledge of sensitivity of eels to electric fields enables development of behavioral barriers that use electricity to guide eels away from turbine intakes.
Apparatus used to test the sensitivity of eels to low-voltage pulsed DC electric fields. Knowledge of sensitivity of eels to electric fields enables development of behavioral barriers that use electricity to guide eels away from turbine intakes.
Ohia seedling in a weeded plot.
Ohia seedling.
Northern Pintail Drake at Colusa National Wildlife Refuge
Northern Pintail Drake at Colusa National Wildlife RefugeNorthern Pintail Drake at Colusa National Wildlife Refuge
Northern Pintail Drake at Colusa National Wildlife Refuge
Northern Pintail Drake at Colusa National Wildlife RefugeNorthern Pintail Drake at Colusa National Wildlife Refuge
Flock of northern pintail flying at Yolo Bypass Wildlife Area
Flock of northern pintail flying at Yolo Bypass Wildlife AreaFlock of northern pintail flying at Yolo Bypass Wildlife Area
Flock of northern pintail flying at Yolo Bypass Wildlife Area
Flock of northern pintail flying at Yolo Bypass Wildlife AreaFlock of northern pintail flying at Yolo Bypass Wildlife Area
Flock of northern pintail ducks at Yolo Bypass Wildlife Area
Flock of northern pintail ducks at Yolo Bypass Wildlife AreaFlock of northern pintail flying at Yolo Bypass Wildlife Area
Flock of northern pintail ducks at Yolo Bypass Wildlife Area
Flock of northern pintail ducks at Yolo Bypass Wildlife AreaFlock of northern pintail flying at Yolo Bypass Wildlife Area
Collaborating on Climate Adaptation
RAMPS expands drought adaptation project with national parks in the 4-Corners area. National parks across the desert Southwest are experiencing ecological impacts due to climate change.
RAMPS expands drought adaptation project with national parks in the 4-Corners area. National parks across the desert Southwest are experiencing ecological impacts due to climate change.
Ross’s Geese on levee at Colusa NWR
Ross’s Geese (and a few ducks) on levee at Colusa National Wildlife Refuge
Ross’s Geese (and a few ducks) on levee at Colusa National Wildlife Refuge
Ross’s Goose flock in flight at Colusa NWR
Ross’s Goose flock in flight at Colusa National Wildlife Refuge
Ross’s Goose flock in flight at Colusa National Wildlife Refuge
Hen and drake northern pintail at Colusa NWR
Hen and drake northern pintail at Colusa National Wildlife Refuge
Hen and drake northern pintail at Colusa National Wildlife Refuge
Ross’s Goose flight at Colusa NWR
Ross’s Goose flock in flight at Colusa National Wildlife Refuge
Ross’s Goose flock in flight at Colusa National Wildlife Refuge