"In 2008, Moko the dolphin was well known at Mahia Beach on New Zealand's North Island. People loved to come and watch the playful dolphin fetch beach balls, steal boogie boards, and interact with the swimmers and beachgoers. In March of that year, two pygmy sperm whales got trapped between a sandbar and the beach and couldn't get them back to the ocean. Several concerned people were unable to help the whales-until Moko came along. Dive in and learn all about the heroic dolphin who helped lead two distressed whales back to the safety of the sea"-- Provided by publisher.