Sphyrna mokarran) before, during, and after Hurricane Matthew in 2016 and Hurricane Irma in 2017. Fortunately (or unfortunately, depending on your feelings towards low-budget sci-fi movies), sharks encountering severe weather do not band together to form a Sharknado. What actually happens when you combine sharks and storms is dependent on the species and location you are investigating. Bull sharks, great hammerheads, and the majority of tagged nurse sharks demonstrated that they weren’t so keen on Hurricane Irma, fleeing the shallow waters of Biscayne Bay as she made ground. The move is perhaps a logical one, considering deeper waters will be less disturbed by all the drama, and potentially helped along by their ability to orientate themselves with the geomagnetic field.