With a robot as their eyes and arms, scientists are looking for life deep beneath the ocean’s surface—before it’s too late. “If we don’t know what’s there, we can’t protect it.” In the Deep is a series by Quartz on the wonders of our oceans and the intrepid scientists seeking to understand them. From the depths of the ocean to vibrant coral reefs, we follow a new generation of explorers using cutting edge technology to push the frontiers of human understanding.