How do marine animals sense the world around them? This month on Naked Oceans we explore the many ways aquatic critters see, sniff, and hear in their watery realm. We discover how tiny fish and lobsters find their way back home, we chat with a scientist who sends out underwater robots to listen for whales - even in the middle of a raging storm. And in Critter of the Month a legendary ichthyologist tells us a fantastic story about a shark on a plane.