Program Information The US Navy Marine Mammal Program (NMMP) began in 1959 with a single Navy scientist and one dolphin. Since that time, the program has expanded its study with the development of the Fleet Marine Mammal Systems utilizing dolphins, beluga whales, and sea lions. In addition, the NMMP is doing a variety of research projects investigating the hearing abilities in a number of species of marine mammals. Research studying dolphin???s biosonar, and their physiological environmental adaptations are also being conducted. We are currently offering positions to be a part of the marine mammal program through internship opportunities.