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
Courting pair of southern right whales underwater, Eubalaena australis. In this image, the male is below and inverted (belly up) and the female is at the surface. While the posture in this photo isn't quite mating, it is a courting behavior that often precedes mating.
Species: Southern Right Whale, Eubalaena australis
Location: Puerto Piramides, Chubut, Argentina
Image ID: 38295
Huge California Sea Lion Male Underwater, a bull, patrolling his breeding harem and territory, Coronado Islands, Mexico. His sagittal crest, the bony bump on his head that distinguishes adult male sea lions, is clearly seen. This particular sea lion bears an orange tag on his left foreflipper, probably as a result of rescue and release as a young sea lion years earlier.
Species: California sea lion, Zalophus californianus
Location: Coronado Islands (Islas Coronado), Baja California, Mexico
Image ID: 38652
Isla San Pedro Martir at sunset with extensive forest of Cardon Cactus seen on the summit ridge of the island, aerial photo, Sea of Cortez, Mexico. San Pedro Martir Island and its marine life are, since 2002, part of the San Pedro Martir Biosphere Reserve, and is regarded as a natural laboratory of adaptive evolution, similar to that of the Galapagos Islands. It is home to 292 species of fauna and flora (both land-based and aquatic), with 42 species protected by Mexican law, and 30 listed on the Red List of Threatened Species. San Pedro Martir is also unique in the area for its year-round quantity of birds. The island is the only island in the area with a perpetually swirling cloud of sea birds. This is because the water around the island, has some of the most successful marine productivity in the world.
Location: Isla San Pedro Martir, Sonora, Mexico
Image ID: 40397
Male Brandt's Cormorant Skypointing, Courtship Display, Breeding Plumage with blue throat and a few white pin-feathers, La Jolla. Skypointing is an interesting courtship behavior that many birds practice. Among Brandt's Cormorants the male performs this, likely as a way of attracting a mate to the nest he has built by showing off his striking blue throat. He tips his head backward showing off his striking blue throat, and partially raises his wings. Seen here on seacliffs above the ocean.
Species: Brandt's cormorant, Phalacrocorax penicillatus
Location: La Jolla, California
Image ID: 40133
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: 23422
Blue whale, exhaling as it surfaces from a dive, aerial photo. The blue whale is the largest animal ever to have lived on Earth, exceeding 100' in length and 200 tons in weight.
Species: Blue whale, Balaenoptera musculus
Location: Redondo Beach, California
Image ID: 25953
Sky Rock at night, light by moonlight with stars in the clear night sky above. Sky Rock petroglyphs near Bishop, California. Hidden atop an enormous boulder in the Volcanic Tablelands lies Sky Rock, a set of petroglyphs that face the sky. These superb examples of native American petroglyph artwork are thought to be Paiute in origin, but little is known about them.
Image ID: 28505
Aerial photo of the San Rafael Reef at dawn. A fold in the Earth's crust leads to this inclined section of the San Rafael Reef, at the eastern edge of the San Rafael Swell. Clearly seen are the characteristic triangular flatiron erosion patterns that typical this formation. The colors seen here arise primarily from Navajo and Wingate sandstone.
Location: Utah
Image ID: 39784
Rattlesnake Canyon, a beautiful slot canyon that is part of the larger Antelope Canyon system. Page, Arizona.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 36039
Belt of Venus over Grand Canyon at sunrise, viewed from Hopi Point on the south rim of Grand Canyon National Park. 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: Grand Canyon National Park, Arizona
Image ID: 37765
Panorama dimensions: 5409 x 10272
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
Blue whale underwater closeup photo. 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.
Species: Blue whale, Balaenoptera musculus
Location: California
Image ID: 27324
Blue whale underwater closeup photo. 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.
Species: Blue whale, Balaenoptera musculus
Location: California
Image ID: 27331
Full Moon and Earth Shadow over Haleakala crater, Maui, Hawaii. The dark band on the horizon is the shadow of the earth, while the lighter pink band is atmosphere that is still lit by the setting sun.
Location: Maui, Hawaii
Image ID: 34517
Owl Canyon, a beautiful slot canyon that is part of the larger Antelope Canyon system. Page, Arizona.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 36030
Sunlight glows throughout a giant kelp forest. Giant kelp, the fastest growing plant on Earth, reaches from the rocky reef to the ocean's surface like a submarine forest.
Species: Giant kelp, Macrocystis pyrifera
Location: San Clemente Island, California
Image ID: 37086
Belt of Venus and Earth Shadow at Dawn. The Belt of Venus is actually alpenglow visible near the horizon during twilight, above the antisolar point. Like alpenglow, the backscatter of reddened sunlight also creates the Belt of Venus. Unlike alpenglow, the sunlight scattered by fine particulates that cause the rosy arch of the Belt shines high in the atmosphere and lasts for a while after sunset or before sunrise.
Location: La Jolla, California
Image ID: 37476
White southern right whale calf underwater, Eubalaena australis. About five per cent of southern right whales are born white due to a condition known as grey morphism and will gradually turn dark as they age. They are not albino (which is a complete lack of pigmentation). Sometimes referred to as "brindled", the white coloration is a recessive genetic trait and only lasts a few months. Typically, but not always, white calves will become much darker as they mature but will still be somewhat lighter than normal even as adults.
Species: Southern Right Whale, Eubalaena australis
Location: Puerto Piramides, Chubut, Argentina
Image ID: 38276
White southern right whale calf underwater, Eubalaena australis. About five per cent of southern right whales are born white due to a condition known as grey morphism and will gradually turn dark as they age. They are not albino (which is a complete lack of pigmentation). Sometimes referred to as "brindled", the white coloration is a recessive genetic trait and only lasts a few months. Typically, but not always, white calves will become much darker as they mature but will still be somewhat lighter than normal even as adults.
Species: Southern Right Whale, Eubalaena australis
Location: Puerto Piramides, Chubut, Argentina
Image ID: 38277
White southern right whale calf underwater, Eubalaena australis. About five per cent of southern right whales are born white due to a condition known as grey morphism and will gradually turn dark as they age. They are not albino (which is a complete lack of pigmentation). Sometimes referred to as "brindled", the white coloration is a recessive genetic trait and only lasts a few months. Typically, but not always, white calves will become much darker as they mature but will still be somewhat lighter than normal even as adults.
Species: Southern Right Whale, Eubalaena australis
Location: Puerto Piramides, Chubut, Argentina
Image ID: 38278