Giant squid eat deep water fishes and other squid. They catch prey by using suckers and teeth on their feeding tentacles, bringing the prey into the beak using their eight arms. The food is broken into smaller pieces by the beak; teeth on the tongue-like organ, called the radula, grind it down further. The food travels through the esophagus, passing through the brain to get to the stomach.
A member of the mollusk phylum, the giant squid grows as long as 43 feet. They are very fast, able to propel themselves through water at 20 mph. Though they have very large eyes reaching almost 1 foot in diameter, giant squid use organs called statocysts to navigate.
Live squid are rarely seen by humans since these creatures live in the deepest parts of the ocean. Most human observations have been of dead squid washed up on beaches. Their carcasses have been found on continental and island slopes in all the world's oceans. They are rare in tropical and polar waters. Giant squid lay eggs upon sexual maturity at the approximate age of 3 years. Little is known about their breeding habits due to the difficulty of obtaining a live specimen for observation.