Humpback Whales takes crowds to Alaska, Hawaii and the Kingdom of Tonga to get a close up look at the way these whales communicate, sing, feed, play and look after their own young. Humpbacks were almost driven to extinction 50 years ago, but now are building a recovery. Join a group of investigators since they explore what makes humpbacks the very acrobatic of snakes, those intelligent 48-ton creatures migrate more than 6,000 miles round-trip annually, and also why only the males sing.