Other examples include: 1  Some mating dances, commonly carried out by birds, are examples of fixed action patterns. 2  In these cases, the sign stimulus is typically the presence of the opposite sex. 3  Kelp gull chicks are stimulated by a red spot on the mother's beak to peck at the spot, which induces regurgitation.
Norwegian's 13-ship fleet sails all over the world, with 2015 itineraries lasting anywhere from one to 45 days. The cruise line's most popular routes include Hawaii, Alaska and the Caribbean, with home ports in U.S. cities like Honolulu, Los Angeles, Miami, New York and Seattle.
The United States, bordered by the world's two largest oceans, is a maritime nation. The military arm of the nation's maritime fleet, the U.S. Navy, helps to patrol the world's oceans in order to keep them safe. With more than 285 ships, including 11 super aircraft carriers, the U.S. Navy is in a constant state of deployment.