Scientists believe that giant squids live for less than five years. This estimate is based on study of giant squid remains washed up on beaches. Giant squids are thought to hatch from tiny eggs and grow at a tremendous rate to achieve their 60 foot long adult size.

Females are believed to lay large numbers of eggs after they reach 3 years of age. The squid eat fish and smaller squid. Young giant squids are eaten by sharks and fish. Adult giant squid are eaten by whales and large sharks.

Giant squid live between 600 and 2,300 feet deep in the ocean. They cannot absorb oxygen well in warmer waters and therefore must stay in the cool depths.