Instinctive behavior occurs when an animal has a particular internal state while it is in the presence of a specific external stimulation called a releaser or a sign stimulus.
47 Ships Sunk by Kamikaze Aircraft. by Bill Gordon. Sources differ regarding the number of ships sunk by kamikaze aircraft during World War II. Inoguchi (1958, 211-34) lists the names of 34 ships sunk by kamikaze attacks, and Warner (1982, 323-34) gives the names of 57 ships sunk by special attack aircraft. However, an examination of other historical records indicates that both of these two lists do not have the correct number of ships sunk by kamikaze.
There are only four of them left--the Missouri, Wisconsin, Iowa and New Jersey--all launched during World War II, when the Navy had a total of 23 battleships. These last four survivors have in recent years been berthed at either Philadelphia or Bremerton, Wash., as part of the inactive or mothball fleet held in readiness for the next war.