Many animals communicate to each other, generally for purposes of mating, with long complex sound sequences. Each sound sequence- in birds, insects, etc. may legitimately be termed a song, and what is surprising is the complexity of some of these compositions. Whales, for example, can "sing" to each other over vast distances- up to a hundred miles, the water carrying the great booming sounds. And a single sound-sequence, i.e. a song, can last for as long as thirty minutes without repetition. We are accustomed to whales breaking anatomical records in the animal kingdom. Perhaps we would less quickly think of them as proficient songsters.