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
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
Panoramic view from Vogelsang Pass (10685') in Yosemite's high country, looking south. A hiker appears twice in this curious panoramic photo, enjoying the spectacular view. Visible on the left are Parson's Peak (12147'), Gallison Lake and Bernice Lake, while Vogelsang Peak (11516') rises to the right.
Location: Yosemite National Park, California
Image ID: 23210
Panorama dimensions: 4512 x 17738
Panorama of Nameless Lake (10709'), surrounded by glacier-sculpted granite peaks of the Cathedral Range, near Vogelsang High Sierra Camp.
Location: Yosemite National Park, California
Image ID: 23211
Panorama dimensions: 3756 x 9102
Darwin's Arch, a dramatic 50-foot tall natural lava arch, rises above the ocean a short distance offshore of Darwin Island. On June 10, 2021, Darwin's Arch broke and fell into the ocean, leaving behind two partial pillars.
Location: Darwin Island, Galapagos Islands, Ecuador
Image ID: 16621
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: 19700
Bull elk in sage brush with large rack of antlers during the fall rut (mating season). This bull elk has sparred with other bulls to establish his harem of females with which he hopes to mate.
Species: Elk, Cervus canadensis
Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming
Image ID: 19718
Panorama of Vogelsang basin, surrounding Vogelsang Lake in Yosemite's High Sierra, viewed from near Vogelsang Pass (10685'). Left is Vogelsang Peak (11516'), Choo-choo Ridge is in the distant middle, and the western flank of Fletcher Peak is to the right.
Location: Yosemite National Park, California
Image ID: 23217
Panorama dimensions: 2945 x 13845
Vernal Falls and Merced River in spring, heavy flow due to snow melt in the high country above Yosemite Valley.
Location: Yosemite National Park, California
Image ID: 26878
Scalloped hammerhead shark swims underwater at Cocos Island. The hammerheads eyes and other sensor organs are placed far apart on its wide head to give the shark greater ability to sense the location of prey.
Species: Scalloped hammerhead shark, Sphyrna lewini
Location: Cocos Island, Costa Rica
Image ID: 03192
Fletcher Peak (10319') at sunset, viewed from Vogelsang High Sierra Camp in Yosemite's high country.
Location: Yosemite National Park, California
Image ID: 23248
The Lower Falls of the Yellowstone River drops 308 feet at the head of the Grand Canyon of the Yellowstone. A long exposure blurs the fast-flowing water. The canyon is approximately 10,000 years old, 20 miles long, 1000 ft deep, and 2500 ft wide. Its yellow, orange and red-colored walls are due to oxidation of the various iron compounds in the soil, and to a lesser degree, sulfur content.
Location: Grand Canyon of the Yellowstone, Yellowstone National Park, Wyoming
Image ID: 13338
Snow covers the rocks and cliffs around Lower Yellowstone Falls in winter. At 308 feet, the Lower Falls of the Yellowstone River is the tallest fall in the park. This view is from Lookout Point on the North side of the Grand Canyon of the Yellowstone.
Location: Grand Canyon of the Yellowstone, Yellowstone National Park, Wyoming
Image ID: 19572
Upper Yosemite Falls and lunar rainbow, moonbow. A lunar rainbow (moonbow) can be seen to the left of Yosemite Falls, where the moon illuminates the spray of the falls.
Location: Yosemite Falls, Yosemite National Park, California
Image ID: 27752
Yosemite Falls and star trails, night sky time exposure of Yosemite Falls waterfall in full spring flow, with star trails arcing through the night sky.
Location: Yosemite National Park, California
Image ID: 26853
Yosemite Falls reflected in flooded meadow. The Merced River floods its banks in spring, forming beautiful reflections of Yosemite Falls.
Location: Yosemite National Park, California
Image ID: 26888