There’s something irresistible about pop music. Every few months, a song is born that transcends cultural differences and plants itself into our minds. Many of us manage to resist the allure of pop through indifference or stubborn determination. Among the humpback whales, however, keeping up with the latest musical fads is a matter of survival.
Humpback whales use their immense bodies as resonating cavities to produce a truly impressive vocal range. A single male has a range wider than any human choir. They can sing from two octaves lower than a bass singer, to three octaves higher than a soprano. This whale choir broadcasts across the ocean, their songs travelling along for thousands of kilometers. Only the males sing, and they do so only during breeding seasons, suggesting that it plays an important role in attracting a mate.
And just like the songs that we listen to, the songs of the humpback have a precise musical structure. They can be broken into separate themes, each of which contain a number of phrases. Each phrase in turn contains a series of notes, ranging from chirps, bleeps and squeaks that sounds like something from a science fiction movie, to more gravelly grunts and a kind of deep, majestic roar. (Audio samples below)