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.
U-Boat 110 destroyed ten vessels before it was sunk by the Royal Navy during July 1918. The Royal Navy managed to surface the sunken u-boat and were planning to return her to service. The u-boat which had a crew of around 41 poeople only had nine survivors when it was defeated in battle. The vessel went down off the coast of Hartlepool in the north east of England.