"There are places in the ocean virtually untouched by man. They offer a fascinating glimpse into our past and an inspiring vision for the future. They are the last Pristine Seas, and National Geographic Explorer-in-Residence Enric Sala takes readers on an unforgettable journey to 10 of these astounding locations. From the shark-rich waters surrounding Coco Island, Costa Rica, to the iceberg-studded sea off Franz Josef Land, Russia, this incredible...