Yosemite Falls reflected in flooded meadow.  The Merced  River floods its banks in spring, forming beautiful reflections of Yosemite Falls, Yosemite National Park, California

Yosemite Falls reflected in flooded meadow. The Merced River floods its banks in spring, forming beautiful reflections of Yosemite Falls. Yosemite National Park.

The Milky Way galaxy arcs above Arch Rock, panoramic photograph, cylindrical projection, Joshua Tree National Park, California

The Milky Way galaxy arcs above Arch Rock in Joshua Tree National Park in this high resolution panoramic photograph.

Freediver photographing pelagic gelatinous zooplankton, adrift in the open ocean, Phacellophora camtschatica, San Diego, California

A freediving underwater photographer hovers above jellyfish Phacellophora camtschatica and salp chain Cyclosalpa affinis, drifting in the open ocean, San Diego, California.

Cathedral Rocks at sunrise, reflected in a spring meadow flooded by the Merced River, Yosemite National Park, California

Cathedral Rocks is reflected at sunrise in a sidewater of the Merced River, Yosemite National Park, California.

The Milky Way galaxy above Arch Rock, Joshua Tree National Park, night star field exposure

The Milky Way galaxy echoes the shape of Arch Rock in Joshua Tree National Park in this, night-time star field exposure.

Vernal Falls and Merced River in spring, heavy flow due to snow melt in the high country above Yosemite Valley, Yosemite National Park, California

Vernal Falls and Merced River in complete spring flood, heavy flow due to snow melt in the high country above Yosemite Valley.

Yosemite Falls and star trails, night sky time exposure of Yosemite Falls waterfall in full spring flow, with star trails arcing through the night sky, Yosemite National Park, California

Star trails appear over Yosemite Falls in this 40 minute time exposure, Yosemite Valley, California.

Yosemite Falls reflected in flooded meadow.  The Merced  River floods its banks in spring, forming beautiful reflections of Yosemite Falls, Yosemite National Park, California

Upper Yosemite Falls is reflected in a flooded meadow created by heavy spring water levels in the Merced River, Yosemite National Park, California.

Colonial planktonic pelagic tunicate, adrift in the open ocean, forms rings and chains as it drifts with ocean currents, Cyclosalpa affinis, San Diego, California

Colonial Planktonic Pelagic Tunicate, San Diego

Colonial planktonic pelagic tunicate, adrift in the open ocean, forms rings and chains as it drifts with ocean currents, Cyclosalpa affinis, San Diego, California

Three ringlets in a chain of pelagic tunicates Cyclosalpa affinish. Each ringlet is formed of approximately 8 to 15 individual salps.

Bottlenose dolphin, breaching the surface of the ocean, offshore of San Diego, Tursiops truncatus

Bottlenose dolphin (Tursiops truncatus) skims the ocean surface.

Bottlenose dolphin, bubbles forming in its exhalation just below the surface of the ocean, offshore of San Diego, Tursiops truncatus

Bottlenose dolphin (Tursiops truncatus), bubbles forming in its exhalation just below the surface of the ocean, offshore of San Diego.

Pelagic tunicate reproduction, large single salp produces a chain of smaller salps as it reproduces while adrift on the open ocean, Cyclosalpa affinis, San Diego, California

Pelagic colonial tunicate (Cyclosalpa affinis) reproduction, adrift on the open ocean.

Pelagic tunicate reproduction, large single salp produces a chain of smaller salps as it reproduces while adrift on the open ocean, Cyclosalpa affinis, San Diego, California

Pelagic Tunicate Reproduction, San Diego

Colonial planktonic pelagic tunicate, adrift in the open ocean, forms rings and chains as it drifts with ocean currents, Cyclosalpa affinis, San Diego, California

Colonial Planktonic Pelagic Tunicate, San Diego

Sunrise and storm clouds over Convict Lake and Laurel Mountain, Eastern Sierra Nevada

Sunrise and storm clouds over Convict Lake and Laurel Mountain, Eastern Sierra Nevada, California.

Colonial planktonic pelagic tunicate, adrift in the open ocean, forms rings and chains as it drifts with ocean currents, Cyclosalpa affinis, San Diego, California

Colonial planktonic pelagic tunicate (Cyclosalpa affinis), adrift in the open ocean, forms rings and chains as it drifts with ocean currents.

Tenaya Peak and Tenaya Lake in Yosemite National Park's high country, with Pywiack Dome, Medlicott Dome and Mount Conness in the distance

Tenaya Peak and Tenaya Lake lie below spring clouds in Yosemite National Park's high country. Yosemite National Park.

The Milky Way galaxy above Arch Rock, Joshua Tree National Park, night star field exposure

The Milky Way Galaxy Above Arch Rock, Joshua Tree National Park

Mount Dana and Mount Gibbs reflected in the Dana Fork of the Tuolumne River, Yosemite National Park, California

Mount Dana and Mount Gibbs reflected in the Dana Fork of the Tuolumne River, Yosemite National Park, California.

Bottlenose dolphin, leaping over the surface of the ocean, offshore of San Diego, Tursiops truncatus

Bottlenose dolphin (Tursiops truncatus), leaping over the surface of the ocean, San Diego.

Bottlenose dolphin, swimming just below the surface of the glassy ocean, offshore of San Diego, Tursiops truncatus

Bottlenose Dolphin, San Diego

Merced River reflections and textures, Yosemite Valley, Yosemite National Park, California

Merced River reflections and textures, Yosemite Valley.

Half Dome and Nevada Falls, with Liberty Cap between them, viewed from the John Muir Trail / Panorama Trail.  Nevada Falls is in peak spring flow from heavy snowmelt in the high country above Yosemite Valley, Yosemite National Park, California

Half Dome (left), Liberty Cap (center) and Nevada Falls viewed from the John Muir Trail, Yosemite National Park.

Yosemite Falls viewed from Cooks Meadow, spring, Yosemite National Park, California

Yosemite Falls during peak spring flow, viewed from Cook's Meadow, Yosemite National Park.

Double rainbow forms in storm clouds, over Swall Meadows and Round Valley in the Eastern Sierra Nevada, Bishop, California

A double rainbow forms in storm clouds over Swall Meadows and Round Valley, at sunrise in the Eastern Sierra Nevada, California.

Merced River reflections and textures, Yosemite Valley, Yosemite National Park, California

Merced River Reflections And Textures, Yosemite National Park

Merced River reflections and textures, Yosemite Valley, Yosemite National Park, California

Merced River Reflections And Textures, Yosemite National Park

Bottlenose dolphin, breaching the surface of the ocean, offshore of San Diego, Tursiops truncatus

Bottlenose Dolphin, San Diego