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.
How many ships did the U-boats sink? During the war the U-boats sank about 2,779 ships for a total of 14.1 million tons GRT. This figure is roughly 70% of all allied shipping losses in all theatres of the war and to all hostile action. The most successful year was 1942 when over 6 million tons of shipping were sunk in the Atlantic.
England's warships had 197 ships and nearly 16, 000 men, most of them were sailors rather than soldiers. On the night of 28th of July, the English launched eight small fire ships at the Spaniards. One Spanish ship was sunk, twp more driven onto where the water was shallow and taken by the Dutch and many others damaged.