Grey Reef Sharks Hang Out with Their Friends

A team of researchers affiliated with multiple institutions in the U.S. and the U.K. tagged 41 grey reef sharks at Palmyra Atoll and monitored their behavior from 2011 to 2014. The research revealed evidence that the sharks bond to a certain degree with others of their kind. The sharks tended to base themselves around a particular spot in the ocean during the day and then return to it after foraging in other areas at night. They found evidence of individual sharks forming associated pairs—some of which lasted for the entire duration of their data period.