Sharks of War: Truth, Tales, and Terror (2015)

Before World War II, experts dismissed sharks as a threat to servicemen. Then in 1942, Navy headquarters received reports about horrific attacks on castaways adrift from sunken ships and downed airplanes. Many of these reports proved to be true. Soon after the war, diving pioneers sought out sharks, expecting the worst because of the shark attack stories. Instead, they found an animal less to be feared than understood.