"Storm" Silky Shark I had to crawl over

I had to crawl over slippery logs to get within range of these skittish harbor seals

Their name comes from the chlorophyll-tinted color of their fat

keeps its countless arms closed during the day

it is a solar-powered clam

"Storm" Silky Shark I had to crawl overLike an underwater storm, currents on the shallow reef stir up silt., The fine silt lifts like a dense fog and flows over the edge of the wall and down the numerous sand chutes. Minutes later the silt is swept away by the deeper currents and its crystal clear again. Jim Hellemn has made a career out of inventing ways to capture the spectacular colors and details of coral reefs. His images have appeared in National Geographic magazine, the American