When Sharks Turned Up at Their Beach, They Called in Drones

Once rare off Southern California beaches, great white sharks are beginning to show up more often. The newcomers are mostly juvenile sharks, which prefer the warm waters closer to shore. That means many beachgoers who are now spotting sharks have never seen the predators before. "When these little fins started to pop up, everyone was scrambling to figure out what was going on," said Douglas J. McCauley, a marine science professor and the director of the Benioff Ocean Initiative at the University of California, Santa Barbara. A new project using artificial intelligence called SharkEye may help keep track of these fearsome fish.