This Oct. 15, 2014 photo shows dolphins swimming along the side of a boat off the coast of San Pedro, Calif. The Navy agreed to limit its use of sonar and other training that inadvertently harms whales, dolphins and other marine mammals off Hawaii and Calif. in a settlement with environmental groups approved Monday Sept. 14, 2015. A centerpiece of the agreement signed by a federal judge in Honolulu includes limits or bans on mid-frequency active sonar and explosives in specified areas around the Hawaiian Islands and Southern California, Earthjustice attorney David Henkin said. (AP Photo/Richard Vogel)