Pilot whales (Globicephala spp.) are social marine top predators that forage primarily on squid, but also on mesopelagic fish (Beasley et al., 2019;Mintzer et al., 2008). These deep-diving delphinids can travel hundreds of kilometres in relatively short periods (Baird et al., 2016) and in several locations exhibit seasonal inshoreoffshore movements related to prey availability (Alves et al., 2019;de Stephanis et al., 2008). Given their long displacement and deepdiving capacities, obtaining data on their movements often exceeded the logistical capabilities using traditional observational methods. Recently, new technologies, such as satellite telemetry, have allowed the acquisition of information on the ecology of pilot whales, showing a variety of behaviours, ranging from localized movements to large-scale displacements associated with foraging opportunities (e.g. Thorne et al., 2017), and have also provided a valuable insight on their social structure (e.g. Bloch et al., 2002). The short-finned pilot whale (Globicephala macrorhynchus) is distributed in tropical and warm waters worldwide (Olson, 2018), including semi-enclosed seas such as the Gulf of Mexico, where it is found year-round (Würsig, 2017). The Gulf of Mexico is the ninth largest body of water in the world, and it is connected to the Atlantic Ocean by the Straits of Florida and to the Caribbean Sea through the Yucatan Channel. It is delimited to the north and northwest by the United States, to the west and south by Mexico, and to the east by Cuba, converging the Exclusive Economic Zones (EEZ) of these countries.Currently, it is unknown whether the short-finned pilot whales of the Gulf of Mexico are from a different population of those in the Northwest Atlantic, and it is not clear if there is more than one stock