“It is little wonder we are spooked by sharks. Psychologists and shark experts almost universally agree that sensationalist media reports, negative portrayals in films like Jaws and The Shallows, and a general lack of understanding about the species have created an irrational and unjustified fear of sharks.” http://www.abc.net.au/news/2017-01-15/sharks-never-sleep-shark-attacks-fear-facts/8180252
Personally I would have thought my healthy fear of ‘sharks do attack & kill’ was based on observational evidence & eye witness accounts relayed via the TV or computer.
Fear, being wired into our system can be for our good. The ocean already was & still is a dangerous place regardless of current populations & coastal activity. The Hollywood movies that exaggerate & dramatize also push the not so scientific “primal fear of being eaten alive is also an evolutionary hangover of our ancestors having been prey.” Ignorance is not bliss.