The Million Mounds coral region, located off the coasts of Georgia and Florida, is one of the largest, continuous stretches of deep-sea corals on Earth (that we know of). The large coral mounds in this region have been growing for hundreds of thousands of years.This investigation features maps, images, and videos from expeditions that explored the Million Mounds coral region. Students analyze and interpret data from the region, including currents and plankton movement to explain the deep-sea phenomenon: How do the deep-sea corals in the Million Mounds coral region get the food they need to grow and reproduce?