Trailblazing marine biologist, visionary conservationist, deep ecology philosopher, Edward F. Ricketts (1897-1948) has reached legendary status in the California mythos. A true polymath and a thinker ahead of his time, Ricketts was a scientist who worked in passionate collaboration with many of his friends--artists, writers, and influential intellectual figures--including, perhaps most famously, John Steinbeck, who once said that Ricketts's mind "had...