The ocean zone, deeper than the bathypelagic zone, that goes from 3,281 feet to 13,124 feet (4,000 m), is called the dark zone or bathypelagic zone. No light reaches this zone, yet many animals are still found here. Besides for the glowing (bioluminescent) animals, sperm whales dive for squid at this great depth. They must be able to stand the very great water pressure at this depth.
