The abbysopleagic zone is pitch black. Absolutely no light reaches this zone. Very few animals are able to survive because of the lack of oxygen, freezing temperatures, and the fact that it is dark. The animals that have adapted and can survive in this zone usually dont have eyes and are very transparent due to a lack of light. These animals include squid, the basket star, swimming cucumber, sea pigs, and sea spiders.This zone is usually where the continental slope levels off. More than 30% of the bottom of the ocean is said to be situated here.