The warming ocean temperatures linked to El Niño could lead to sharks appearing in regions where they are rarely seen, potentially increasing encounters with humans. Areas like California may see species such as tiger sharks, bull sharks, and hammerheads, which are typically found in warmer waters. While the overall risk of shark attacks remains low, beachgoers should exercise caution, particularly in areas with visible prey like seals or schools of fish. The potential for increased shark activity could also impact local economies reliant on tourism and fishing, as well as marine ecosystems adjusting to the changing conditions.