Large male elk (bull) in snow covered meadow near Madison River. Only male elk have antlers, which start growing in the spring and are shed each winter. The largest antlers may be 4 feet long and weigh up to 40 pounds. Antlers are made of bone which can grow up to one inch per day. While growing, the antlers are covered with and protected by a soft layer of highly vascularised skin known as velvet. The velvet is shed in the summer when the antlers have fully developed. Bull elk may have six or more tines on each antler, however the number of tines has little to do with the age or maturity of a particular animal.
Species: Elk, Cervus canadensis
Location: Yellowstone National Park, Wyoming
Image ID: 19692
Mammoth Peak (12,117') reflected in small tarn pond at sunrise, viewed from meadows near Tioga Pass.
Location: Yosemite National Park, California
Image ID: 25773
Hiker traversing the John Muir Trail to Fletcher Peak and Vogelsang Peak through alpine meadow in Yosemite's high country, trail on approach to Vogelsang High Sierra Camp.
Location: Yosemite National Park, California
Image ID: 23204
Small alpine tarn pond, in grassy meadow near Lake Evelyn, in Yosemite's beautiful high country, late summer.
Location: Yosemite National Park, California
Image ID: 25777
Double rainbow forms in storm clouds, over Swall Meadows and Round Valley in the Eastern Sierra Nevada.
Location: Bishop, California
Image ID: 26859
Panorama dimensions: 4386 x 9319
Sunrise reflections in Tioga Lake. This spectacular location is just a short walk from the Tioga Pass road. Near Tuolumne Meadows and Yosemite National Park.
Location: Tioga Lake, Yosemite National Park, California
Image ID: 09951
Male elk (bull) alongside female elk in grassy meadow, during rutting season. A bull will defend his harem of 20 cows or more from competing bulls and predators. Only mature bulls have large harems and breeding success peaks at about eight years of age. Bulls between two to four years and over 11 years of age rarely have harems, and spend most of the rut on the periphery of larger harems. Young and old bulls that do acquire a harem hold it later in the breeding season than do bulls in their prime. A bull with a harem rarely feeds and he may lose up to 20 percent of his body weight while he is guarding the harem.
Species: Elk, Cervus canadensis
Location: Yellowstone National Park, Wyoming
Image ID: 19723