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
Culture of the United States Marine Corps 1868 emblem, and is depicted with wings displayed, standing upon the western hemisphere of the terrestrial globe, and holding in his beak a scroll inscribed with the Marine Corps motto ""Semper Fidelis"" with the hemisphere superimposed on a fouled anchor. The seal is displayed on a scarlet background encircled with a Navy blue band edged in a gold rope rim and inscribed "Department of the Navy, United States Marine Corps" in gold letters. Coincident with the approval of this seal by the President, the Eagle, Globe, and Anchor emblem centered on the seal was adopted in 1955 as the official