Multimedia Gallery

Recent research by the Interagency Grizzly Bear Study Team provides new insight into grizzly population dynamics and the hazards that influence bear mortality within the Greater Yellowstone Ecosystem, which is one of the largest strongholds for grizzly populations in the United States. Chuck Schwartz, USGS biologist and lead of the study team, discusses these findings.

Compared to the rich diversity of forests, sagebrush shrublands contain relatively few species. Yet, these shrublands in the western United States have incredibly complex dynamics that present major challenges for conservation. They are also one of the most imperiled habitats in North America, primarily due to invasive plant species. Non-native cheatgrass promotes more

Deep-sea coral ecosystems are thriving communities that are a vibrant and integral part of ocean ecosystems. Listen as Christina Kellogg, USGS microbiologist with the DISCOVRE program, explains why these ecosystems are important.

• Wildlife tracking technology has evolved from bird bands to satellite transmitters and has a wide range of applications in answering important conservation questions
• David Mech and Robert Gill will talk about the use of the latest state-of-the-art technology in tracking wildlife
• Mech shares the secret paths of a pack of 20 or more arctic wolves

Bison are an icon of North America. However, bison today are restricted to less than one percent of their original range, according to a new report by the International Union for the Conservation of Nature. Peter Gogan, a USGS scientist and co-author of this bison report, discusses the status of North American buffalo and how they are affected by current management

We talk with Jason Lambrecht of the Nebraska Water Science Center to talk about a common problem this time of year, ice jams.

• USGS science from astrogeology to earth observing satellites
• Exploration of gas hydrates and deep coral reefs
• USGS scientists use innovative techniques to develop a more complete understanding or how our earth works

Harley Benz, Scientist-in-Charge at the USGS National Earthquake Information Center, discusses the recent earthquake in Chile and how research and preparation can save lives.

In response to the 7.0-magnitude earthquake that tragically struck Haiti on January 12, 2010, the U.S. Geological Survey has coordinated a series of trips to the country to characterize the damage and install seismic instruments for earthquake monitoring. USGS seismologist Walter Mooney, who returned from the first of the series of trips in early February, discusses the

The potentially lethal fungal disease chytridiomycosis has been associated with declining amphibian populations around the globe. This rapidly emerging disease, and the chytrid fungus that causes it, have forced scientists to scramble to learn more. There are still plenty of mysteries about the origin and spread of the fungus. With today's episode we will shed some light

• Scientists are preparing ARkStorm for emergency planning and disaster preparedness
• A series of ‘Atmospheric River’ events slams into the West Coast with hurricane force overal several weeks
• Weather models show expected hazards such as floods, landslides, and erosion impacting life and property
• Storms of this magnitude are projected to become

Ice shelves are retreating along the Antarctic Peninsula due to climate change. This could result in glacier retreat and sea-level rise if warming continues.

USGS scientist Jane Ferrigno discusses the USGS project that is for the first time studying the entire Antarctic coastline in detail.

USGS South Carolina Water Science Center Data Chief, John Shelton in a special hydrologic expedition down the Congo River, West Africa. Part one of a three part episode, sets the stage for the trials and tribulations of water investigations for a changing world.

USGS North Carolina Data Chief, Jeanne Robbins, provides an overview on hydrologic data collection techniques for North Carolina.

The powerful storms that swept through Southern California dumped a lot of rain in that region, leaving behind the danger of debris flows.

Sue Cannon, USGS research geologist, explains the hazardous situation facing residents in and near the San Gabriel Mountains, how people in the area can respond to these hazards, and what the USGS is doing to respond.

Few would believe the importance of freshwater mussels to scientists here in the Pacific Northwest. These little-known and often-ignored organisms may live for over a century on the bottoms of lakes, rivers, and streams. Freshwater mussels have a story to tell, and researchers have developed a way of ‘reading’ this story. USGS Aquatic Biologist Jason Dunham discusses his

The aftershock sequence of the magnitude 7 earthquake that struck Haiti on Jan. 12, 2010, will continue for months, if not years. The frequency of events will diminish with time, but damaging earthquakes will remain a threat.

Michael Blanpied, USGS Associate Earthquakes Hazards Program coordinator, discusses concerns and precautions for the future in Haiti and the

As Haiti copes with the aftermath of the magnitude 7 earthquake, which struck on Tuesday, January 12, 2010, the U.S. Geological Survey is working to gather information that can aid response efforts. Michael Blanpied, USGS Earthquakes Hazards Program coordinator, gives an update on the current situation in Haiti and answers questions about the global picture.

On January 12, 2010, Haiti was struck by the most violent earthquake in a century. Michael Blanpied, associate coordinator for the USGS Earthquake Hazards Program, answers questions about the earthquake, its severe shaking, and the possibility of additional hazards, such as landslides and a tsunami.

Carcinogenic compounds in a popular pavement sealer are tracked indoors, where they show up in high concentrations in house dust.

Listen as USGS hydrologist Barbara Mahler explains how she and her team identified the link between polycyclic aromatic hydrocarbons in coal-tar-based pavement sealcoat and house dust.

Scientists have reconstructed what the climate conditions were 3 million years ago, and are using these data as one of the closest analogs to estimate future climate conditions.

USGS scientists Harry Dowsett and Marci Robinson discuss some of their findings regarding carbon dioxide’s impact, Arctic conditions, and the deep ocean’s system.

• Scientists and volunteers are working to restore the Eastern population of the federally listed whooping crane
• The life history and migration of whooping cranes

A magnitude 5.8 earthquake occurred just south of the California-Mexico border shortly before 11 a.m. on Wednesday, December 30, and shaking from this earthquake was widely felt.

Ken Hudnut, Southern California Regional Coordinator for the USGS Earthquake Program, spends a few minutes filling in some details about this event.