The mesopelagic zone is directly underneath the epipelagic zone. Not a lot of sunlight reaches this zone so its hard to sustain any plant or animal life. The few animals that do live in this zone, however, are usually very still due to lack of oxygen in the water and sometimes they go up to the epipelagic zone to feed on prey. Animals in this zone include octopus, squid, and hatchet fish. Many creatures that live in this zone are also transparent, which a good camoflague in this zone where there is barely enough light to see. Some animals here have also developed larger eyes to make best use of the limited light.