Flightless bird more species of flightless birds (including the kiwi, several species of penguins, the takahe, the weka, the moa, and several other extinct species) than any other such location. One reason is that until the arrival of humans roughly a thousand years ago, there were no large land predators in New Zealand; the main predators of flightless birds were larger birds. Ratites belong to the superorder Palaeognathae birds, which include the volant tinamou, and are believed to have evolved flightlessness independently multiple times within their own group. Some birds evolved flightlessness in response to the absence of predators, for example on
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