Humback whales in Juneau have developed a skill called bubble netting where they form a circle below a school of Herring and then all exhale at once. This frightens the fish into a ball as they swim upward to escape the bubbles. The whales then charge upward through the fish, mouths agape, breaking the surface as a group. These photos show this extremely rare occurrence performed by a gam of Humpbacks. Gams are groups of unrelated whales brought together by the calls of one whale that assembles the gam and coordinates its activities. This gam has as many as 25 individuals feeding together.
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