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Image: Tracking Sea Otters
Tracking Sea Otters
Tracking Sea Otters
Tracking Sea Otters

Sea otter researchers Michelle Staedler, Monterey Bay Aquarium, and Tim Tinker, USGS, work together to locate sea otters in their study project. USGS scientists and their partners study sea otters in efforts to help the threatened species continue to recover from near extinction.

Sea otter researchers Michelle Staedler, Monterey Bay Aquarium, and Tim Tinker, USGS, work together to locate sea otters in their study project. USGS scientists and their partners study sea otters in efforts to help the threatened species continue to recover from near extinction.

Image: Tracking Sea Otters
Tracking Sea Otters
Tracking Sea Otters
Tracking Sea Otters

USGS sea otter researcher Tim Tinker drives the boat on an expedition to track and observe sea otters in Monterey Bay, California. USGS scientists study sea otters in efforts to help the threatened species continue to recover from near extinction.

USGS sea otter researcher Tim Tinker drives the boat on an expedition to track and observe sea otters in Monterey Bay, California. USGS scientists study sea otters in efforts to help the threatened species continue to recover from near extinction.

Image: Tracking Sea Otters
Tracking Sea Otters
Tracking Sea Otters
Tracking Sea Otters

USGS wildlife biologist Alisha Kage holds out a VHF receiver, hoping to hear the tell-tale beep that helps her locate sea otters that are part of study to monitor and learn more about the species. USGS scientists study sea otters in efforts to help the threatened species continue to recover from near extinction.

USGS wildlife biologist Alisha Kage holds out a VHF receiver, hoping to hear the tell-tale beep that helps her locate sea otters that are part of study to monitor and learn more about the species. USGS scientists study sea otters in efforts to help the threatened species continue to recover from near extinction.

Image: Visions of Kelp, Monterey Bay
Visions of Kelp, Monterey Bay
Visions of Kelp, Monterey Bay
Visions of Kelp, Monterey Bay

Kelp forests are often called the rainforest of the sea. They support wide varieties of marine life. Sea otters are both a sentinal and a keystone species for the health of kelp forests. Without sea otters, there is a shift in the ecosystem that can severly damage the kelp forests.

Kelp forests are often called the rainforest of the sea. They support wide varieties of marine life. Sea otters are both a sentinal and a keystone species for the health of kelp forests. Without sea otters, there is a shift in the ecosystem that can severly damage the kelp forests.

Image: Visions of Kelp, Monterey Bay
Visions of Kelp, Monterey Bay
Visions of Kelp, Monterey Bay
Visions of Kelp, Monterey Bay

Kelp forests are often called the rainforest of the sea. They support wide varieties of marine life. Sea otters are both a sentinal and a keystone species for the health of kelp forests. Without sea otters, there is a shift in the ecosystem that can severly damage the kelp forests.

Kelp forests are often called the rainforest of the sea. They support wide varieties of marine life. Sea otters are both a sentinal and a keystone species for the health of kelp forests. Without sea otters, there is a shift in the ecosystem that can severly damage the kelp forests.

Eelgrass in Kinzarof Lagoon
Eelgrass in Kinzarof Lagoon
Eelgrass in Kinzarof Lagoon
Eelgrass in Kinzarof Lagoon

Eelgrass (Zolstera marina) in Kinzarof Lagoon

Eelgrass (Zolstera marina) in Kinzarof Lagoon

USGS CoreCast
USGS CoreCast Series
USGS CoreCast Series
Kasatochi Volcano Erupts Explosively
Kasatochi Volcano Erupts Explosively
USGS CoreCast
USGS CoreCast Series
USGS CoreCast Series
Kasatochi Volcano Erupts Explosively

Kasatochi Volcano in Alaska's Aleutian Islands is erupting, so USGS volcano scientist Marianne Guffanti fills us in on the situation.

Kasatochi Volcano in Alaska's Aleutian Islands is erupting, so USGS volcano scientist Marianne Guffanti fills us in on the situation.

Image: Red Hill Bay
Red Hill Bay
Red Hill Bay
Red Hill Bay

Red Hill Bay Marina, Salton Sea, California.

Red Hill Bay Marina, Salton Sea, California.

Aerial view of a strongly discolored river in a deep and rugged canyon. Blue sky and scattered clouds above the canyon
Strikingly orange-tinted flow of the Colorado River in Granite Gorge
Strikingly orange-tinted flow of the Colorado River in Granite Gorge
Strikingly orange-tinted flow of the Colorado River in Granite Gorge

Summer flash-floods can introduce large amounts, of fine reddish-orange sediment to the Colorado River with spectacular results

Summer flash-floods can introduce large amounts, of fine reddish-orange sediment to the Colorado River with spectacular results

USGS station 08114000 Brazos River at Richmond, Texas, looking upstream from eastbound U.S. Highway 90-A bridge.
USGS station 08114000 Brazos River at Richmond, Texas
USGS station 08114000 Brazos River at Richmond, Texas
USGS station 08114000 Brazos River at Richmond, Texas

U.S. Geological Survey streamflow-gaging station 08114000 Brazos River at Richmond, Texas, looking upstream from eastbound U.S. Highway 90-A bridge, August 7, 2008.
USGS SIR 2009–5174
http://pubs.usgs.gov/sir/2009/5174/

U.S. Geological Survey streamflow-gaging station 08114000 Brazos River at Richmond, Texas, looking upstream from eastbound U.S. Highway 90-A bridge, August 7, 2008.
USGS SIR 2009–5174
http://pubs.usgs.gov/sir/2009/5174/

USGS station 08114000 Brazos River at Richmond, Texas, downstream from eastbound U.S. Highway 90-A bridge.
USGS station 08114000 Brazos River at Richmond, Texas
USGS station 08114000 Brazos River at Richmond, Texas
USGS station 08114000 Brazos River at Richmond, Texas

U.S. Geological Survey streamflow-gaging station 08114000 Brazos River at Richmond, Texas, looking downstream from eastbound U.S. Highway 90-A bridge, August 7, 2008.
USGS SIR 2009–5174
http://pubs.usgs.gov/sir/2009/5174/

U.S. Geological Survey streamflow-gaging station 08114000 Brazos River at Richmond, Texas, looking downstream from eastbound U.S. Highway 90-A bridge, August 7, 2008.
USGS SIR 2009–5174
http://pubs.usgs.gov/sir/2009/5174/

USGS station 08114000 Brazos River at Richmond, Texas, looking downstream from eastbound U.S. Highway 90-A bridge.
USGS station 08114000 Brazos River at Richmond, Texas
USGS station 08114000 Brazos River at Richmond, Texas
USGS station 08114000 Brazos River at Richmond, Texas

U.S. Geological Survey streamflow-gaging station 08114000 Brazos River at Richmond, Texas, looking downstream from eastbound U.S. Highway 90-A bridge, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08114000 Brazos River at Richmond, Texas, looking downstream from eastbound U.S. Highway 90-A bridge, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking upstream from right bank.
USGS station 08116650 Brazos River near Rosharon, Texas
USGS station 08116650 Brazos River near Rosharon, Texas
USGS station 08116650 Brazos River near Rosharon, Texas

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking upstream from right bank, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking upstream from right bank, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, upstream from FM 1462 bridge.
USGS station 08116650 Brazos River near Rosharon, Texas
USGS station 08116650 Brazos River near Rosharon, Texas
USGS station 08116650 Brazos River near Rosharon, Texas

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking upstream from FM 1462 bridge, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking upstream from FM 1462 bridge, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking downstream from FM 1462.
USGS station 08116650 Brazos River near Rosharon, Texas
USGS station 08116650 Brazos River near Rosharon, Texas
USGS station 08116650 Brazos River near Rosharon, Texas

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking downstream from FM 1462 bridge, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking downstream from FM 1462 bridge, August 7, 2008.
USGS SIR 2009–5174

A bridge over the Matanuska River
A bridge over the Matanuska River
A bridge over the Matanuska River
A bridge over the Matanuska River

Scenic view of the Matanuska River with a bridge spanning across. This photo was part of an erosion project on the river.

Scenic view of the Matanuska River with a bridge spanning across. This photo was part of an erosion project on the river.

USGS CoreCast
USGS CoreCast Series
USGS CoreCast Series
Hazard Roundup--July 2008
Hazard Roundup--July 2008
USGS CoreCast
USGS CoreCast Series
USGS CoreCast Series
Hazard Roundup--July 2008

A roundup of the previous month's hazard-related events around the world, with some newsworthy tidbits.

USGS CoreCast
USGS CoreCast Series
USGS CoreCast Series

A roundup of the previous month's hazard-related events around the world, with some newsworthy tidbits.

CoreFacts
CoreFacts Album Artwork
CoreFacts Album Artwork
Can animals predict earthquakes?
Can animals predict earthquakes?
CoreFacts
CoreFacts Album Artwork
CoreFacts Album Artwork
Can animals predict earthquakes?

Listen to hear the answer.

Image: Candor Colles of Candor Chasma, Mars
Candor Colles of Candor Chasma, Mars
Candor Colles of Candor Chasma, Mars
Candor Colles of Candor Chasma, Mars

Enhanced color image of a hill in the Candor Colles region of Candor Chasma, Mars. Image is 1 km (0.62 miles) across. 

Enhanced color image of a hill in the Candor Colles region of Candor Chasma, Mars. Image is 1 km (0.62 miles) across. 

Image: Candor Colles of Mars
Candor Colles of Mars
Candor Colles of Mars
Candor Colles of Mars

Perspective view of the map area looking toward the northeast, with the Candor Colles (low hills) in the foreground. 

Perspective view of the map area looking toward the northeast, with the Candor Colles (low hills) in the foreground. 

Biologist measuring a Mackenzie River Arctic grayling, Canada
Biologist measuring a Mackenzie River Arctic grayling, Canada
Biologist measuring a Mackenzie River Arctic grayling, Canada
Biologist measuring a Mackenzie River Arctic grayling, Canada

Measuring an Arctic Grayling from the Mackenzie River in Canada.  This was part of an Arctic Cisco project.

Measuring an Arctic Grayling from the Mackenzie River in Canada.  This was part of an Arctic Cisco project.