The giant squid’s eye is the largest eye in the animal kingdom. It’s as big as a human head. Here, National Museum of Natural History staffer Katie Velazco goes eye-to-eye with a preserved example from the museum's collection. Learn about the giant squid's beak, suckers, and other over-sized body parts in this video with Smithsonian scientist Clyde Roper. Want a basic overview of the animal? Visit our Giant Squid section.