Whale song refers to the complex vocalizations produced by certain species of whales, particularly humpback whales. These sounds can travel long distances underwater and are used for communication, navigation, and possibly mating purposes. The songs can last for hours and consist of a series of moans, clicks, and whistles. Researchers study whale songs to understand their patterns and meanings. Each population of whales has its own unique song, which can change over time. The study of these vocalizations helps scientists learn more about marine biology and the social behaviors of these magnificent creatures.