Jewel Squid

This jewel squid (Histioteuthis bonnellii) lives above the Mid-Atlantic Ridge.
(David Shale/MAR-ECO, Census of Marine Life)

This beautiful jewel squid (Histioteuthis bonnellii) can be found swimming above the Mid-Atlantic Ridge, at depths of 500-2,000 meters (1,640-6,562 feet). The “jewels” covering the body are bioluminescent photophores. But these squids can't bargain for their lives with those jewels: they have been found in the stomachs of sperm whales, swordfish and sharks.