Full moon with 22-degree lunar halo, Joshua Tree National Park. The lunar halo (not to be cofused with lunar corona) forms when moonlight refracts through high altitude ice crystals. As no light is refracted at angles smaller than 22-degrees the sky is darker inside the halo.
Location: Joshua Tree National Park, California
Image ID: 30711
Underwater Light and Sand, Lake Tahoe, Nevada.
Location: Lake Tahoe, Nevada
Image ID: 32327
Boulders underwater, Lake Tahoe, Nevada.
Location: Lake Tahoe, Nevada
Image ID: 32349
Underwater Light and Sand, Lake Tahoe, Nevada.
Location: Lake Tahoe, Nevada
Image ID: 32358
Underwater Light and Sand, Lake Tahoe, Nevada.
Location: Lake Tahoe, Nevada
Image ID: 32359
Courting group of southern right whales, aerial photo. Mating may occur as a result of this courting and social behavior. The white whale seen here is a serious player named El Copulador (the copulator) and is often seen in mating and courting groups of southern right whales at Peninsula Valdes. His light coloration is an indication that he was a white calf, but he did not darken as he aged in the way most white southern right whale calves do.
Species: Southern Right Whale, Eubalaena australis
Location: Puerto Piramides, Chubut, Argentina
Image ID: 38357
Aerial photo of white Southern Right Whale calf with its mother. The mother is gray in color, rather than dark black, since she was a white calf herself and gradually darkened to gray as she matured. 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). The white coloration is a recessive genetic trait and only lasts a few months. Typically white calves become much darker as they mature but will still be lighter than normal even as adults. By permission of the Government of Argentina, Chubut, permit # 51 / 2025-SsCyA.
Species: Southern Right Whale, Eubalaena australis
Location: Puerto Piramides, Chubut, Argentina
Image ID: 41180
Mated pair of Brandt's Cormorants tend to the nest they have built on sea cliffs. Note the colors they assume during mating season: striking blue gular pouch (throat) along with faint blue-green iridescence in their plumage.
Species: Brandt's cormorant, Phalacrocorax penicillatus
Location: La Jolla, California
Image ID: 40130
California Brown pelican in flight, soaring along sea cliffs above the ocean in La Jolla, California. The wingspan of the brown pelican is over 7 feet wide. The California race of the brown pelican holds endangered species status.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Image ID: 37412