Kelp fronds and pneumatocysts. Pneumatocysts, gas-filled bladders, float the kelp off the ocean bottom toward the surface and sunlight, where the leaf-like blades and stipes of the kelp plant grow fastest. Catalina Island, California.
Species: Giant kelp, Macrocystis pyrifera
Location: Catalina Island, California
Image ID: 37282
The Kelp Forest offshore of La Jolla, California. A kelp forest. Giant kelp grows rapidly, up to 2' per day, from the rocky reef on the ocean bottom to which it is anchored, toward the ocean surface where it spreads to form a thick canopy. Myriad species of fishes, mammals and invertebrates form a rich community in the kelp forest. Lush forests of kelp are found throughout California's Southern Channel Islands.
Species: Giant kelp, Macrocystis pyrifera
Image ID: 30986
Roosevelt elk, adult bull male with large antlers. This bull elk has recently shed the velvet that covers its antlers. While an antler is growing, it is covered with highly vascular skin called velvet, which supplies oxygen and nutrients to the growing bone; once the antler has achieved its full size, the velvet is lost and the antler's bone dies. This dead bone structure is the mature antler, which is itself shed after each mating season. Roosevelt elk grow to 10' and 1300 lb, eating grasses, sedges and various berries, inhabiting the coastal rainforests of the Pacific Northwest.
Species: Roosevelt elk, Cervus canadensis roosevelti
Location: Redwood National Park, California
Image ID: 25878
A sliding rock of the Racetrack Playa. The sliding rocks, or sailing stones, move across the mud flats of the Racetrack Playa, leaving trails behind in the mud. The explanation for their movement is not known with certainty, but many believe wind pushes the rocks over wet and perhaps icy mud in winter.
Location: Racetrack Playa, Death Valley National Park, California
Image ID: 25239
Bridalveil Falls at sunset, with clouds and blue sky in the background. Bridalveil Falls in Yosemite drops 620 feet (188 m) from a hanging valley to the floor of Yosemite Valley.
Location: Bridalveil Falls, Yosemite National Park, California
Image ID: 34540
Kelp fronds showing pneumatocysts, bouyant gas-filled bubble-like structures which float the kelp plant off the ocean bottom toward the surface, where it will spread to form a roof-like canopy.
Location: Santa Barbara Island, California
Image ID: 35827
Sentinel Dome summit compass marker, with Half Dome in the distance, Yosemite National Park.
Location: Yosemite National Park, California
Image ID: 36363
Sunset light on Half Dome and Clouds Rest, Tenaya Canyon at lower left, Yosemite National Park.
Location: Yosemite National Park, California
Image ID: 36391
Panorama dimensions: 5300 x 19120