Marine life same environmental problems and feeding niches have resulted in similar adaptations. Examples include albatross, penguins, gannets, and auks. In general, marine birds live longer, breed later and have fewer young than terrestrial birds do, but they invest a great deal of time in their young. Most species nest in colonies, which can vary in size from a few dozen birds to millions. Many species are famous for undertaking long annual migrations, crossing the equator or circumnavigating the Earth in some cases. They feed both at the ocean's surface and below it, and even feed on each other. Marine birds can
Southern Kangaroo Island Marine Park Park which is managed by the Government of South Australia. The marine park includes an ecosystem representative of the bioregion known as the "Spencer Gulf Shelf Province", a "key ecological feature" consisting of a feature known as the "Kangaroo Island Pool" and the associated "Eyre Peninsula upwelling" both notable for their "high productivity, breeding and feeding aggregations", a calving area for southern right whale and feeding areas for both the Australian sea lion and the great white shark. The marine park is classified as an IUCN Category VI protected area. Southern Kangaroo Island Marine Park Southern Kangaroo Island Marine Park