Scientists from the University of Queensland working on the Humpback Whale Acoustic Research Collaboration (HARC) project are trying to break the mysterious communication systems of whales. Whalesong is said to be audible to other whales halfway across the planet. But what do all their melodic squeaks, moans, grumbles and singing mean? The scientists have begun recording some of the whales’ extensive repertoire in an effort to answer that very question.