(CNN) Drop through the ocean in the right place and eventually you'll enter the twilight zone. The ocean twilight zone, formally known as the mesopelagic zone, exists roughly 200-1,000 meters below the surface. Mesobot is an underwater robot designed to track and record high-resolution images of slow-moving and often delicate fauna living in the ocean twilight zone. As most of the twilight zone exists outside of national jurisdiction, an international effort is underway to ensure good stewardship. The UN has backed a consortium known as JETZON (Joint Exploration of the Twilight Zone Ocean Network) to coordinate research, share technology and findings and inform policymakers.