Researchers are unsure why humpback whales sing.
It could be to attract females or to notify other whales that they are in the area. The most amazing part of humpback whale songs is that the whales create themes and may repeat the same song for hours, broken only by pauses for breath. Humpback whale songs can last for 20 minutes and they sometimes repeat the song for hours. Then the whales swim right up through the center of the bubbles and ingest the prey. Humpback whales soemtiems breed and feed in large, dynamic groups.