Learn about the distribution, migration, feeding, and behaviour of humpback whales, one of the most-watched and well-studied species of whale. Find out how to identify them, where to see them, and why they are endangered. Humpback Whale defined and explained with descriptions. Humpback Whale is a large, dark gray, torpedo-shaped marine mammal, with pleats along its throat. Humpback whales live along the coasts of all oceans, occasionally swimming close to shore, even into harbours and rivers. They undertake long migrations between polar feeding grounds in summer and tropical or subtropical breeding grounds in winter. Learn about the humpback whale, a tuneful, graceful and huge mammal that undertakes long migrations and faces many threats. Find out how to help protect this species and its habitat with WDC.