Ralph Pace / Green Sea Turtle (Chelonia mydas), San Diego, California

Konrad Wothe / Clouds, Bavaria, Germany

Ingo Arndt / Mountains and lake, Nordenskjold Lake, Paine Massif, Torres del Paine, Torres del Paine National Park, Patagonia, Chile

Andrew Peacock / Acacia (Acacia sp) trees at sunset, northern Kenya

Cyril Ruoso / Sun shining down through the tropical rainforest canopy, Cameroon

Chien Lee / Lowland rainforest with sunrays cutting through mist, Cuc Phuong National Park, Ninh Binh, Vietnam

Jim Brandenburg / Sundogs, also known as mock sun, with snow field, Minnesota

Chien Lee / Rainforest with sun rays cutting through the mist, Danum Valley Conservation Area, Borneo, Malaysia

Michael & Patricia Fogden / Interior cloud forest, shafts of sunlight shining through canopy break allowing growth of understory plants, Costa Rica

Hiroya Minakuchi / Galapagos Sea Lion (Zalophus wollebaeki) silhouetted by surface sunlight, Galapagos Islands, Ecuador

Norbert Wu / Sunlight shafting through blue water, Pacific Ocean

Norbert Wu / Giant Kelp (Macrocystis pyrifera) forms dark, lush canopy forest in cold waters, southern California