The Pisces IV submersible sits atop the summit of Cook seamount, as seen from the Pisces V craft, during a dive to the previously unexplored underwater volcano off the coast of Hawaii's Big Island on Sept. 6, 2016. "We don‚Äôt know anything about the ocean floor," said Peter Seligmann, chairman, CEO and co-founder of Conservation International. "What we know is that each one of those seamounts is a refuge for new species, but we don‚Äôt know what they are. We don‚Äôt know how they‚Äôve evolved. We don‚Äôt know what lessons they have for us." (AP Photo/Caleb Jones)