For as long as she can remember, Dr. Andrea Marshall wanted to be a marine biologist. Now, sheâ€™s living out her dream with one of the oceanâ€™s most amazing creatures. That is, Marshall studies and helps protect giant manta rays. While Marshallâ€™s work takes her around the world, she calls the vast, undeveloped coastline of southern Mozambique her home. There, she dives, photographs and interacts with these enormous, gentle, intelligent creatures. Strap on your fins, weâ€™re going diving.