As Americans hit the beach to celebrate the fourth of July holiday weekend, bathers at Cape Cod will be able to learn of any great white sharks lurking underwater in the area with a new smartphone app that tracks the movement of the deadly predators.However, she added that the team hopes to use the app to change the public’s attitude towards great whites, which have for decades been synonymous with the Jaws films. “A big part of what the organization does is to work to try and change public perception by supplying them with fact based information and we’re gathering that information by funding the science,” Wigren said. The app can send out alerts to those going to the beach, warning them of any great whites in the area, as the shark season is in full swing. Wigren added that the app is not just for those looking to find or avoid sharks off Cape Cod, as it can be used anywhere along the US coast and she believes it will not be hard to get the word out about the new app. Last summer, lifeguards at Surfside Beach in California used miniature drones to detect sharks. If they found sharks that were showing aggressive behavior, they would close the beaches to the public to prevent any accidents. “If we get bigger sharks or we get sharks that are aggressive, we’re actually going to close the water. But right now, we have sharks that are 5- to 6-feet long, non-aggressive, acting like normal sharks, feeding on bottom fish, doing exactly what we would expect them to do,” Chief Joe Bailey, a Seal Beach lifeguard, told CBS Los Angeles. “That’s why we have it posted just to let people know that they are there.”