Marine biologists have now deciphered more of the humpback whale language. It seems they often communicate with a combination of behaviours and sounds.
For example, breaching, and the following splash, is a signal meant to alert other groups that “I’m here”. A ‘wop’, seems to be a signal between a female and her calf and a similar sound, dubbed the ‘thwop’, was made most often by lone males looking for females. To listen to the humpback language go here or here, and to read more go here.