Flightless bird that require a significant amount of overall metabolic energy, ratites decrease their basal metabolic rate and conserve energy. A study looking at the basal rates of birds found a significant correlation between low basal rate and pectoral muscle mass in kiwis. On the contrary, flightless penguins exude an intermediate basal rate. This is likely because penguins have well-developed pectoral muscles for hunting and diving in the water. For ground feeding birds, a cursorial lifestyle is more economical and allows for easier access to dietary requirements. Flying birds have different wing and feather structures that make flying easier, while flightless birds'
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