Sylvia Earle Her Deepness
Oceanographer Sylvia Earle was the first person to walk solo on the bottom of the sea, under a quarter mile of water. She has watched humanity\u2019s enduring fascination with \u201couter space\u201d while she has delighted in \u201cinner space\u201d \u2014 the alien and increasingly endangered worlds beneath earth\u2019s waters. These frontiers, as Sylvia Earle points out, are our very life-support system. She takes us inside the knowledge she\u2019s gathered from a lifetime of research and literally swimming with sharks.