Western Grebes rushing across Lake Wohlford, exhibiting a spectacular courtship behavior in which the aquatic birds literally run across the surface of the water while their feet hit the water up to 20 times per second.
Species: Western Grebe, Aechmophorus occidentalis
Location: Lake Wohlford, Escondido, California
Image ID: 40840
Two Western Grebes in a Spectacular Rush Across the Surface of Lake Wohlford. Rushing is a courtship behavior among grebes and requires the aquatic birds to step as rapidly as 20 beats per second to walk across water in this way. Simply amazing.
Species: Western Grebe, Aechmophorus occidentalis
Location: Lake Wohlford, Escondido, California
Image ID: 40866
Southern Lapwing in flight, Vanellus chilensis, on Peninsula Valdes in Argentina's coastal Patagonia. Note the spur-like structure at the wrist joint which it uses to fight other birds in flight. By permission of the Government of Argentina, Chubut, permit # 51 / 2025-SsCyA.
Species: Southern Lapwing, Vanellus chilensis
Location: Puerto Piramides, Chubut, Argentina
Image ID: 41191
Mesa Arch spans 90 feet and stands at the edge of a mesa precipice thousands of feet above the Colorado River gorge. For a few moments at sunrise the underside of the arch glows dramatically red and orange.
Location: Island in the Sky, Canyonlands National Park, Utah
Image ID: 18040
Hammerhead sharks swim in a school underwater at Wolf Island in the Galapagos archipelago. 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: Wolf Island, Galapagos Islands, Ecuador
Image ID: 16271
A green wave breaking, with sunset light filtering through.
Location: Ponto, Carlsbad, California
Image ID: 19395
A neonate gray whale calf, born just hours before, still exhbiting embryonic folds in the skin along its side. This baby gray whale was born in the cold waters of Big Sur, far to the north of the Mexican lagoons of Baja California where most gray whale births take place.
Species: Gray whale, Eschrichtius robustus
Location: Monterey, California
Image ID: 01135
A huge blue whale swims through the open ocean in this underwater photograph. The blue whale is the largest animal ever to live on Earth.
Species: Blue whale, Balaenoptera musculus
Image ID: 03027
Lunar Eclipse Sequence Over Broken Hill, Torrey Pines State Reserve. While the moon lies in the full shadow of the earth (umbra) it receives only faint, red-tinged light refracted through the Earth's atmosphere. As the moon passes into the penumbra it receives increasing amounts of direct sunlight, eventually leaving the shadow of the Earth altogether. October 8, 2014.
Location: Torrey Pines State Reserve, San Diego, California
Image ID: 29412
A Perfect Yellow Phase Brown Pelican Head Throw with Distant Ocean in Background, bending over backwards, stretching its neck and gular pouch. Note the winter breeding plumage except with bright yellow throat instead of the more typical red, yellow head, pink skin around the eye, brown hind neck with some white neck side detail, gray breast and body.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Location: La Jolla, California
Image ID: 40809