So what did we see after our duck mission was complete? Here are some walrusses. The ship drove through a HUGE walrus rookery, and there it was when we returned to land. They hang out around the edges of the "leads" in the ice, resting for their next dive to the bottom. Their main food is a type of clam that has a long siphon. The walrus use their tusks to dig up the bottom, and their powerful lips suction the clam meat right out of the shell.