Male elk bugling during the fall rut. Large male elk are known as bulls. Male elk have large antlers which are shed each year. Male elk engage in competitive mating behaviors during the rut, including posturing, antler wrestling and bugling, a loud series of screams which is intended to establish dominance over other males and attract females.
Species: Elk, Cervus canadensis
Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming
Image ID: 19693
A great white shark opens it mouth just before it attacks its prey with a crippling, powerful bite. After the prey has been disabled, the shark will often wait for it to weaken from blood loss before resuming the attack. If the shark looses a tooth in the course of the bite, a replacement just behind it will move forward to take its place.
Species: Great white shark, Carcharodon carcharias
Location: Guadalupe Island (Isla Guadalupe), Baja California, Mexico
Image ID: 19452
A great white shark swims through the clear waters of Isla Guadalupe, far offshore of the Pacific Coast of Mexico's Baja California. Guadalupe Island is host to a concentration of large great white sharks, which visit the island to feed on pinnipeds and use it as a staging area before journeying farther into the Pacific ocean.
Species: Great white shark, Carcharodon carcharias
Location: Guadalupe Island (Isla Guadalupe), Baja California, Mexico
Image ID: 19465
Aerial View of Namena Marine Reserve and Coral Reefs, Namena Island, Fiji.
Location: Namena Marine Reserve, Namena Island, Fiji
Image ID: 34680
Panorama dimensions: 4800 x 16200
The British Columbia Parliament Buildings are located in Victoria, British Columbia, Canada and serve as the seat of the Legislative Assembly of British Columbia. The main block of the Parliament Buildings combines Baroque details with Romanesque Revival rustication.
Location: Victoria, British Columbia, Canada
Image ID: 21048
Ancient Douglas fir trees in Cathedral Grove. Cathedral Grove is home to huge, ancient, old-growth Douglas fir trees. About 300 years ago a fire killed most of the trees in this grove, but a small number of trees survived and were the originators of what is now Cathedral Grove. Western redcedar trees grow in adundance in the understory below the taller Douglas fir trees.
Species: Douglas fir tree, Pseudotsuga menziesii
Location: Cathedral Grove, MacMillan Provincial Park, Vancouver Island, British Columbia, Canada
Image ID: 22456
Panorama dimensions: 9702 x 3043
The Virgin River Narrows, where the Virgin River has carved deep, narrow canyons through the Zion National Park sandstone, creating one of the finest hikes in the world.
Location: Virgin River Narrows, Zion National Park, Utah
Image ID: 28575