According ro reports, Agreat white shark measuring up to 12 feet likely killed a 57-year-old surfer off Sydney this weekend, as harrowing details of the attack emerged and authorities stepped up surveillance for the predators. The experienced surfer, identified by Australian media as Mercury Psillakis, was mauled to death by a shark on Saturday off a popular beach in northern Sydney, police and rescuers say, leading to a string of beach closures. The man, who had a wife and young daughter, lost “a number of limbs” and his surfboard was broken in two.It was the first fatal shark attack in Sydney since 2022, when 35-year-old British diving instructor Simon Nellist was killed off Little Bay. What is your take on marine attacks on humans ?

