
* * * * * Surfacing out of dark green water a 500-pound sea lion bull exhaled with a splutter, took a breath, and looked around. Behind him stood the two-storied, north end of Pier 39, with all its boutique tourist shops and restaurants. Getting its bearings, the huge bull submerged and scooted barely underwater without creating a ripple. After a while the enormous sea lion surfaced and found himself in the middle of K-Dock, containing 25 heavy-duty wooden floats, supporting some 60-plus sea lions sunning themselves. Since September of 1989 the sea lions took over the K-Dock area, in the Pier 39 Marina, and eventually became an important tourist attraction. Exhaling loudly, the sea lion bull checked the area for a dry landing spot. Selecting one, he...