Shark nets catch and kill thousands of sea creatures. What are the alternatives? | ABC News

New South Wales is about to reinstall shark nets on its beaches for the summer, but in Queensland, shark nets are up year-round.
State Governments say the devices help keep swimmers safe, but the nets also ensnare and often kill thousands of other species like whales, dolphins, turtles and rays.
So how do shark nets work? What are the alternatives? Could drones and satellite technology offer a more humane way to protect both people and marine life?
Jessica van Vonderen takes a look.
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