Advances in robotics, sensing and genomics are accelerating discovery in the darkest ocean depths. Scientists are finding a more sophisticated, life-filled place than they ever expected
TINY NAVIGATORS Zooplankton fill the seas, but they don’t just drift along with the currents, as once was thought. They react and move as water conditions change, driving the ocean’s food web and much of its daily life. Source: Flip Nicklin/Minden Pictures
