Dolphins over come the challenges of finding food in the ocean by cooperating with other each other and encircling their prey. Learn more about the feeding habits of dolphins from a marine biologist in this free video on dolphins. Expert: Maddalena Bearzi, Ph.D. Bio: Maddalena Bearzi is the co-founder and president of the Ocean Conversation Society in Los Angeles, California. Filmmaker: dino ziric Series Description: Dolphins are an interesting, smart sea mammal. Learn more about the life of dolphins with help from a marine biologist in this free video on dolphins.