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
Dorsal and Caudal fins of the Ocean Sunfish Mola mola, as it Swims in the Open Ocean, near San Diego. The caudal fin is not a true tail but is a tail-like structure called a clavus that serves as a rudder. The dorsal (top) and anal (bottom) fins are used for propulsion.
Species: Ocean sunfish, Mola mola
Location: San Diego, California
Image ID: 39407
Carlsbad Coast Highway Sunset, Terramar and North Ponto to Oceanside with Camp Pendleton in the distance. Rising in the distance is San Onofre Mountain (1722') topped by a tall signal tower, one of the southern peaks in the Santa Ana Mountains.
Location: Carlsbad, California
Image ID: 35902
Sunset on Terra Mar and the Carlsbad coastline, looking north to Oceanside, Camp Pendleton and San Onofre. The Oceanside Pier, lit up at night, is seen further up the coast. Rising in the distance is San Onofre Mountain (1722') topped by a tall signal tower, one of the southern peaks in the Santa Ana Mountains.
Image ID: 36117
Cadlina luteomarginata, Yellow-edged Cadlina, a type of nudibranch of sea slug.
Location: San Diego, California
Image ID: 37207
Carlsbad Coast Highway Sunset, Terramar and North Ponto to Oceanside with Camp Pendleton in the distance. Rising in the distance is San Onofre Mountain (1722') topped by a tall signal tower, one of the southern peaks in the Santa Ana Mountains.
Location: Carlsbad, California
Image ID: 37478
Spectacular underwater rocky reef topography at San Clemente Island, typified by crevices, walls and profuse vertical relief on the rocky ocean bottom below the kelp forest.
Location: San Clemente Island, California
Image ID: 38505
Large Adult Male California Sea Lion Bull Underwater, Mexico. His sagittal crest, the prominent bump on the top of his head, is clearly seen. A few bubbles trail behind him because he typically barks underwater as he swims. This bull had assembled a large group of adult females and remained in a 75-yard stretch of rocky shoreline to guard them from other males. Here he is seen patrolling the underwater perimeter of his harem territory, something he does often.
Species: California sea lion, Zalophus californianus
Location: Coronado Islands (Islas Coronado), Baja California, Mexico
Image ID: 39986