A brown pelican preening, uropygial gland (preen gland) visible near the base of its tail. Preen oil from the uropygial gland is spread by the pelican's beak and back of its head to all other feathers on the pelican, helping to keep them water resistant and dry. Note adult winter breeding plumage in display, with brown neck, red gular throat pouch and yellow and white head. This adult is just transitioning to the brown hind neck that characterizes breeding brown pelicans.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Location: La Jolla, California
Image ID: 36682
The bisons massive head is its most characteristic feature. Its forehead bulges because of its convex-shaped frontal bone. Its shoulder hump, dwindling bowlike to the haunches, is supported by unusually long spinal vertebrae. Over powerful neck and shoulder muscles grows a great shaggy coat of curly brown fur, and over the head, like an immense hood, grows a shock of black hair. Its forequarters are higher and much heavier than its haunches. A mature bull stands about 6 1/2 feet (2 meters) at the shoulder and weighs more than 2,000 pounds (900 kilograms). The bisons horns are short and black. In the male they are thick at the base and taper abruptly to sharp points as they curve outward and upward; the females horns are more slender.
Species: American bison, Bison bison
Location: Yellowstone National Park, Wyoming
Image ID: 13120
California sea lion, underwater at Santa Barbara Island. Santa Barbara Island, 38 miles off the coast of southern California, is part of the Channel Islands National Marine Sanctuary and Channel Islands National Park. It is home to a large population of sea lions.
Species: California sea lion, Zalophus californianus
Location: Santa Barbara Island, California
Image ID: 23418
California sea lions, underwater at Santa Barbara Island. Santa Barbara Island, 38 miles off the coast of southern California, is part of the Channel Islands National Marine Sanctuary and Channel Islands National Park. It is home to a large population of sea lions.
Species: California sea lion, Zalophus californianus
Location: Santa Barbara Island, California
Image ID: 23429
Ancient bristlecone pine trees in Patriarch Grove, display characteristic gnarled, twisted form as it rises above the arid, dolomite-rich slopes of the White Mountains at 11000-foot elevation. Patriarch Grove, Ancient Bristlecone Pine Forest.
Species: Ancient bristlecone pine, Pinus longaeva
Location: White Mountains, Inyo National Forest, California
Image ID: 28526
San Diego city skyline, showing the buildings of downtown San Diego rising above San Diego Harbor, viewed from Point Loma at sunset, with mountains of the Cleveland National Forest rising in the distance. A panoramic photograph, composite of six separate images. Mount San Miguel is on right and Lyons Peak to the left.
Location: San Diego, California
Image ID: 22252
Panorama dimensions: 3144 x 16621