This adolescent chick, hatched and raised at the USGS Patuxent Wildlife Research Center, is one of ten whooping cranes being released in Louisiana in February 2011. It is a milestone for the state and for the birds, which have not lived in the state since the 1950s.
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Whooping Crane Chick
This adolescent chick, hatched and raised at the USGS Patuxent Wildlife Research Center, is one of ten whooping cranes being released in Louisiana in February 2011. It is a milestone for the state and for the birds, which have not lived in the state since the 1950s.
Aspens, Autumn, and Idaho
Aspens in Idaho showing their yellow foliage of autumn.
Aspens in Idaho showing their yellow foliage of autumn.
Western Skink
The Western skink (Plestiodon skiltonianus) is a relatively common and widespread lizard in Southern California. It is more secretive and prefers more grassy habitat than the Western fence lizard or the side-blotched lizard, yet USGS and National Park Service biologists are finding signs of genetic isolation in all these species.
The Western skink (Plestiodon skiltonianus) is a relatively common and widespread lizard in Southern California. It is more secretive and prefers more grassy habitat than the Western fence lizard or the side-blotched lizard, yet USGS and National Park Service biologists are finding signs of genetic isolation in all these species.
Closed lodgepole pinecone
A closed lodgepole pinecone on a tree in the Sierra Nevada.
A closed lodgepole pinecone on a tree in the Sierra Nevada.
Gibbon River
Meandering of the Gibbon River at Yellowstone National Park.
Meandering of the Gibbon River at Yellowstone National Park.
Autumn at Undine Falls
Vegetation bordering a Yellowstone canyon at Undine Falls.
Vegetation bordering a Yellowstone canyon at Undine Falls.
Autumn at Undine Falls
Vegetation bordering a Yellowstone canyon at Undine Falls.
Vegetation bordering a Yellowstone canyon at Undine Falls.
Yellowstone Autumn Trails
A hiking trail in the back country of Yellowstone National Park.
A hiking trail in the back country of Yellowstone National Park.
Extremophilic Microbial Mats
Water run off from the Excelsior geyser hot spring. Various extremophilic microbial mats (Domains Archaea and Eubacteria) living in the hot springs, acidic habitats, and geyser basins. Notice the bands of color as microbial populations separate according to their tolerance for differing temperature and/or pH gradients.
Water run off from the Excelsior geyser hot spring. Various extremophilic microbial mats (Domains Archaea and Eubacteria) living in the hot springs, acidic habitats, and geyser basins. Notice the bands of color as microbial populations separate according to their tolerance for differing temperature and/or pH gradients.
Autumn Vista Along the Snake River
Coniferous trees along the Snake River.
Coniferous trees along the Snake River.
Snake River and Hints of Autumn
A portion of the Snake River as it winds its way through Yellowstone National Park.
A portion of the Snake River as it winds its way through Yellowstone National Park.
Autumn Vista Along the Snake River
Autumn foliage on the Snake River.
Autumn foliage on the Snake River.
Ranchlands, Utah and Idaho
Roadsides, ranchlands, and mountains.
Roadsides, ranchlands, and mountains.
Ranchlands, Utah and Idaho
Roadsides, ranchlands, and mountains.
Roadsides, ranchlands, and mountains.
Autumn Mountain Byways
Byways and Mountains in Autumn.
Byways and Mountains in Autumn.
Remnants of a spruce forest
Remnants of a spruce forest complex following a severe wildfire in the Yukon Flats National Wildlife Refuge, Alaska. Wildfires are the dominant landscape-scale disturbance operating at annual time scales in Alaska, and fires play a major role in the rate and extent of vegetation growth and productivity of a site.
Remnants of a spruce forest complex following a severe wildfire in the Yukon Flats National Wildlife Refuge, Alaska. Wildfires are the dominant landscape-scale disturbance operating at annual time scales in Alaska, and fires play a major role in the rate and extent of vegetation growth and productivity of a site.
Didymosphenia, an invasive form of algae sometimes known as rocksnot
Didymosphenia, an invasive form of algae sometimes known as rocksnot.
Didymosphenia, an invasive form of algae sometimes known as rocksnot.
Juvenile Mountain Yellow-legged Frog
Juvenile mountain yellow-legged frog in San Bernardino County, California.
Juvenile mountain yellow-legged frog in San Bernardino County, California.
Rogue River, Oregon
Rogue River Canyon in southwest Oregon
Rogue River Canyon in southwest Oregon
A meltwater stonefly larva (Lednia tumana)
A meltwater stonefly larva (Lednia tumana) sits on a cobbled snow fed stream in Glacier National Park. The species is threatened by climate warming induced glacier and snow loss and has been petitioned for protection under the U.S. Endangered Species Act due to climate-change-induced habitat loss.
A meltwater stonefly larva (Lednia tumana) sits on a cobbled snow fed stream in Glacier National Park. The species is threatened by climate warming induced glacier and snow loss and has been petitioned for protection under the U.S. Endangered Species Act due to climate-change-induced habitat loss.
Catching fish to sample for genetic testing in Glacier National Park
Catching fish to sample for genetic testing in Glacier National Park.
Catching fish to sample for genetic testing in Glacier National Park.