Keywords: Humpback-bubble-spiral Olson.jpg An aerial view of a bubble net created by feeding humpback whales off Cape Fanshaw Alaska http //spo nwr noaa gov/mfr611/ original at NMML Collection NMFS/NOAA http //www afsc noaa gov/nmml/gallery/cetaceans/humpback php gallery http //www afsc noaa gov/nmml/gallery_admin/albums/cetaceans/humpback/mn-20 jpg direct link ; this version found in http //www dosits org/animals/use/2aa htm How do marine mammals use sound when feeding http //www dosits org/animals/use/img/bubble2 jpg direct link ; Yet another version found in http //spo nwr noaa gov/mfr611/mfr6113 pdf Marine Fisheries Review The Humpback Whale J Olson NMFS/NOAA http //www oar noaa gov/aboutus/copyright html Image Humpback-bubble-spiral-large Olson jpg original PD-USGov Megaptera novaeangliae Cetaceans of Alaska Natural spirals Bubbles Small images |