Their jaws are finely serrated which aids them in tearing vegetation. The Australian flatback apparently eats sea cucumbers, jellyfish, mollusks, prawns, bryozoans, and other invertebrates, as well as seaweed. Each species of sea turtle eats, sleeps, mates and swims in distinctly different areas. Sometimes their habitats overlap, but for the most part they each have different preferences. Loggerheads can be found in temperate and subtropical waters throughout most of the world.
Adults usually stay close to mainland shores.
They prefer to feed in coastal bays and estuaries, as well as in the shallow water along the continental shelves of the Atlantic, Pacific and Indian Oceans. Loggerheads inhabit an enormous range from north to south. In the Western hemisphere they are found as far north as Newfoundland and as far south as Argentina. They mainly stay near the coastline and around islands. While the black turtle subspecies is found along the west coasts of North, Central and South America, from central Baja California to Peru.