Kelp fronds and pneumatocysts. Pneumatocysts, gas-filled bladders, float the kelp plant off the ocean bottom toward the surface and sunlight, where the leaf-like blades and stipes of the kelp plant grow fastest. Giant kelp can grow up to 2' in a single day given optimal conditions. Epic submarine forests of kelp grow throughout California's Southern Channel Islands.
Species: Giant kelp, Macrocystis pyrifera
Location: San Clemente Island, California
Image ID: 23454
The Milky Way galaxy arcs above Arch Rock, panoramic photograph, cylindrical projection.
Location: Joshua Tree National Park, California
Image ID: 26848
Panorama dimensions: 6121 x 10275
Colonial planktonic pelagic tunicate, adrift in the open ocean, forms rings and chains as it drifts with ocean currents.
Species: Salp, Cyclosalpa affinis
Location: San Diego, California
Image ID: 26835
An enormous blue whale rounds out (hunches up its back) before diving. Note the distinctive mottled skin pattern and small, falcate dorsal fin. Open ocean offshore of San Diego.
Species: Blue whale, Balaenoptera musculus
Location: San Diego, California
Image ID: 07527
Sailing stone on the Racetrack Playa. The sliding rocks, or sailing stones, move across the mud flats of the Racetrack Playa, leaving trails behind in the mud. The explanation for their movement is not known with certainty, but many believe wind pushes the rocks over wet and perhaps icy mud in winter.
Location: Racetrack Playa, Death Valley National Park, California
Image ID: 27689