A trio of humpback whales break the surface of the water as they work together in a group behavior known as “bubble feeding” off the coast of Cape Cod near Provincetown, Mass., July 11, 2008. In a group activity unique to the endangered humpbacks, they dive below a school of fish then blow huge a huge bubble cloud to help bring their dinner to the surface where they feed with their mouths wide open. Seagulls fly nearby to dine on the fish that escape the whales. (AP Photo/J. Scott Applewhite)