Check out the video on their page to hear some of the cool recordings:“It’s not like a songbird’s song, designed to attract a female and repel other males. The humpbacks’ songs are meant to attract females to the arena.” That is, they tell the gals where the boys are. And another voice, even one of a young, inexperienced male, may help carry the message, he says.
http://news.sciencemag.org/plants-anima ... %94-whales