This red octopod (Stauroteuthis syrtensis) shines in a novel way. Suckers stretching in a single row down each arm flash on and off. The glowing-sucker octopod drifts through deep waters off the eastern United States—down to 2,500 meters (8,200 feet)—and grows up to 50 cm (18 inches) long. Learn more about cephalopods and deep ocean exploration on the Ocean Portal.