Conventional wisdom holds that sharks can't be harvested in a sustainable manner because they are long-lived animals. It takes time for them to reproduce and grow in numbers. But, researchers reporting in Current Biology on February 6 have evidence to suggest that sustainable shark fishing can be done with careful, science-based management. In fact, they say, an outright shark ban won't work. The only way to protect sharks and the food security of people who depend on them is by managing shark fisheries sustainably.