Sea lions hauled out on public docks in Astoria's East Mooring Basin. This bachelor colony of adult males takes up residence for several weeks in late summer on public docks in Astoria after having fed upon migrating salmon in the Columbia River. The sea lions can damage or even sink docks and some critics feel that they cost the city money in the form of lost dock fees.
Species: California sea lion, Zalophus californianus
Location: Columbia River, Astoria, Oregon
Image ID: 19437
Sea lions hauled out on public docks in Astoria's East Mooring Basin. This bachelor colony of adult males takes up residence for several weeks in late summer on public docks in Astoria after having fed upon migrating salmon in the Columbia River. The sea lions can damage or even sink docks and some critics feel that they cost the city money in the form of lost dock fees.
Species: California sea lion, Zalophus californianus
Location: Columbia River, Astoria, Oregon
Image ID: 19438
Sea lions hauled out on public docks in Astoria's East Mooring Basin. This bachelor colony of adult males takes up residence for several weeks in late summer on public docks in Astoria after having fed upon migrating salmon in the Columbia River. The sea lions can damage or even sink docks and some critics feel that they cost the city money in the form of lost dock fees.
Species: California sea lion, Zalophus californianus
Location: Columbia River, Astoria, Oregon
Image ID: 19439
Sea lions hauled out on public docks in Astoria's East Mooring Basin. This bachelor colony of adult males takes up residence for several weeks in late summer on public docks in Astoria after having fed upon migrating salmon in the Columbia River. The sea lions can damage or even sink docks and some critics feel that they cost the city money in the form of lost dock fees.
Species: California sea lion, Zalophus californianus
Location: Columbia River, Astoria, Oregon
Image ID: 19440
A bull sea lion shows a brand burned into its hide by the Oregon Department of Fish and Wildlife, to monitor it from season to season as it travels between California, Oregon and Washington. Some California sea lions, such as this one C-704, prey upon migrating salmon that gather in the downstream waters and fish ladders of Bonneville Dam on the Columbia River. The "C" in its brand denotes Columbia River. These sea lions also form bachelor colonies that haul out on public docks in Astoria's East Mooring Basin and elsewhere, where they can damage or even sink docks.
Species: California sea lion, Zalophus californianus
Location: Columbia River, Astoria, Oregon
Image ID: 19441
Sea lions hauled out on public docks in Astoria's East Mooring Basin. This bachelor colony of adult males takes up residence for several weeks in late summer on public docks in Astoria after having fed upon migrating salmon in the Columbia River. The sea lions can damage or even sink docks and some critics feel that they cost the city money in the form of lost dock fees.
Species: California sea lion, Zalophus californianus
Location: Columbia River, Astoria, Oregon
Image ID: 19442
Sea lions hauled out on public docks in Astoria's East Mooring Basin. This bachelor colony of adult males takes up residence for several weeks in late summer on public docks in Astoria after having fed upon migrating salmon in the Columbia River. The sea lions can damage or even sink docks and some critics feel that they cost the city money in the form of lost dock fees.
Species: California sea lion, Zalophus californianus
Location: Columbia River, Astoria, Oregon
Image ID: 19443
Columns, York Hall, Revelle College, University of California San Diego, UCSD.
Image ID: 21221
A great white shark is countershaded, with a dark gray dorsal color and light gray to white underside, making it more difficult for the shark's prey to see it as approaches from above or below in the water column. The particular undulations of the countershading line along its side, where gray meets white, is unique to each shark and helps researchers to identify individual sharks in capture-recapture studies. Guadalupe Island is host to a relatively large population of great white sharks who, through a history of video and photographs showing their countershading lines, are the subject of an ongoing study of shark behaviour, migration and population size.
Species: Great white shark, Carcharodon carcharias
Location: Guadalupe Island (Isla Guadalupe), Baja California, Mexico
Image ID: 19484
Hypostyle Hall of Columns, Karnak Temple complex.
Location: Luxor, Egypt
Image ID: 18477
Hypostyle Hall of Columns, Karnak Temple complex.
Location: Luxor, Egypt
Image ID: 18482
Luxor Temple, statues and columns at night.
Location: Luxor, Egypt
Image ID: 18484
The Astoria Column rises 125 feet above Coxcomb Hill, site of the first permanent American Settlement west of the Rockies, itself 600 feet above Astoria. It was erected in 1926 and has been listed in the National Register of Historic Places since 1974. The column displays 14 scenes commemorating important events in the history of Astoria in cronological order. An interior 164-step spiral staircase leads to the top of a viewing platform with spectacular views.
Location: Astoria, Oregon
Image ID: 19444
The Astoria Column rises 125 feet above Coxcomb Hill, site of the first permanent American Settlement west of the Rockies, itself 600 feet above Astoria. It was erected in 1926 and has been listed in the National Register of Historic Places since 1974. The column displays 14 scenes commemorating important events in the history of Astoria in cronological order. An interior 164-step spiral staircase leads to the top of a viewing platform with spectacular views.
Location: Astoria, Oregon
Image ID: 19445
The Astoria Column rises 125 feet above Coxcomb Hill, site of the first permanent American Settlement west of the Rockies, itself 600 feet above Astoria. It was erected in 1926 and has been listed in the National Register of Historic Places since 1974. The column displays 14 scenes commemorating important events in the history of Astoria in cronological order. An interior 164-step spiral staircase leads to the top of a viewing platform with spectacular views.
Location: Astoria, Oregon
Image ID: 19446
Sheepeater Cliffs, an example of columnar jointing in basalt due to shrinkage during cooling.
Location: Yellowstone National Park, Wyoming
Image ID: 19794