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: Madison River, Yellowstone National Park, Wyoming
Image ID: 19697
The Virgin River flows by autumn cottonwood trees, part of the Virgin River Narrows. This is a fantastic hike in fall with the comfortable temperatures, beautiful fall colors and light crowds.
Location: Virgin River Narrows, Zion National Park, Utah
Image ID: 26098
Colorado River and Sorrel River Ranch, Moab, Utah. The Dome Plateau rises over the river on the left.
Location: Moab, Utah
Image ID: 37949
Molly's Castle, aerial view, Goblin Valley State Park. Curtis Formation whiteish caprock is on top, with reddish Entrada Sandstone below, both of Jurassic era. Molly's castle lies in the San Rafael desert near Goblin Valley, and drains into the Colorado River watershed. Aerial panoramic photograph.
Location: Goblin Valley State Park, Utah
Image ID: 37950
The corallimorph Corynactis californica, similar to both stony corals and anemones, is typified by a wide oral disk and short tentacles that radiate from the mouth. The tentacles grasp food passing by in ocean currents.
Species: Strawberry anemone, Corynactis californica
Location: San Diego, California
Image ID: 37212
The corallimorph Corynactis californica, similar to both stony corals and anemones, is typified by a wide oral disk and short tentacles that radiate from the mouth. The tentacles grasp food passing by in ocean currents.
Species: Strawberry anemone, Corynactis californica
Location: San Diego, California
Image ID: 37215
The corallimorph Corynactis californica, similar to both stony corals and anemones, is typified by a wide oral disk and short tentacles that radiate from the mouth. The tentacles grasp food passing by in ocean currents.
Species: Strawberry anemone, Corynactis californica
Location: San Diego, California
Image ID: 37201
The corallimorph Corynactis californica, similar to both stony corals and anemones, is typified by a wide oral disk and short tentacles that radiate from the mouth. The tentacles grasp food passing by in ocean currents.
Species: Strawberry anemone, Corynactis californica
Location: San Diego, California
Image ID: 37208
Blue whale underwater with mouth full of krill, calf is partially seen below the mother. This incredible picture of a blue whale, the largest animal ever to inhabit earth, shows it swimming through the open ocean, a rare underwater view. Over 80' long and just a few feet from the camera, an extremely wide lens was used to photograph the entire enormous whale.
Species: Blue whale, Balaenoptera musculus
Location: California
Image ID: 27317
The corallimorph Corynactis californica, similar to both stony corals and anemones, is typified by a wide oral disk and short tentacles that radiate from the mouth. The tentacles grasp food passing by in ocean currents.
Species: Strawberry anemone, Corynactis californica
Location: San Diego, California
Image ID: 37202
Belt of Venus over Horseshoe Bend on the Colorado River. The Colorado River makes a 180-degree turn at Horseshoe Bend. Here the river has eroded the Navajo sandstone for eons, digging a canyon 1100-feet deep. The Belt of Venus, or anti-twilight arch, is the shadow of the earth cast upon the atmosphere just above the horizon, and occurs a few minutes before sunrise or after sunset.
Location: Page, Arizona
Image ID: 37781
Panorama dimensions: 5719 x 8788
Aerial photo of San Dieguito Lagoon and Dog Beach. San Dieguito Lagoon State Marine Conservation Area (SMCA) is a marine protected area near Del Mar in San Diego County.
Location: Del Mar, California
Image ID: 30604
Aerial Photo of Tijuana River Mouth SMCA. Tijuana River Mouth State Marine Conservation Area borders Imperial Beach and the Mexican Border.
Location: Imperial Beach, California
Image ID: 30649
San Diego and Tijuana City Skyline, viewed from Mount Soledad.
Location: San Diego, California
Image ID: 36661
Panorama dimensions: 4868 x 8654