©2009 WGBH Educational Foundation. All Rights Reserved.

Adapted from NOVA scienceNOW: "Mystery of the Gakkel Ridge". Third party images courtesy of: (map) © WGBH Educational Foundation; (Oden breaking ice, CAMPER, PUMA) © Chris Linder, Woods Hole Oceanographic Institution; (sea sponge, yellow bacteria mat, pyroclastic debris) © Advanced Imaging and Visualization Laboratory, Woods Hole Oceanographic Institution. Third party videos courtesy of: (Oden in ice floes, helicopter scouting, Oden time lapse, rescuing PUMA) © Devin Ruddick, Woods Hole Oceanographic Institution; (cirrate octopus, unidentified fauna at a hydrothermal vent, deep-sea shrimp) © Advanced Imaging and Visualization Laboratory, Woods Hole Oceanographic Institution.