Dolphins: Delphinidae

Dolphins are familiar to most people from exhibitions at marine parks and movies and television programs such as "Flipper." Dolphin-watching tours attract thousands of ecotourists, who travel to observe these animals without interfering with them. More controversial are resorts where tourists can swim with captive dolphins. Dolphins are hunted for food in some places in the world. They are also trained by the United States military to retrieve small underwater objects.