In some parts of the world, when a shark attacks a human, the shark becomes the hunted. Off Réunion Island in the Indian Ocean, where in the past five years nearly 20 attacks and seven fatalities have occurred, anti-shark efforts include huge nets and underwater spotters armed with harpoons.

Areas of South Africa also have offshore nets as well as a flag system to alert beachgoers when sharks are lurking nearby. And in Australia, after two deadly shark attacks in a week, a 14-foot shark was captured and killed on a baited drum line. As shark attacks become more common – last year was an all-time record for shark attacks worldwide – governments and lifeguard agencies are figuring out how to protect the public, sometimes in controversial ways. READ MORE