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.
NORWEGIAN PEARL. * Gross Tonnage is a measure of the ship's revenue producing volume. Over 100,000 gross tons is a very big ship.** The date indicates the date the ship entered service. The ship may have been renamed and/or refurbished subsequent to that date.*** Class relates to the design of the ship with the name of the class usually being taken from the first ship built from that design.