Despite being large sharks—common threshers (Alopias vulpinus) can reach lengths of 20 feet—they are incredibly shy around humans. Scuba divers report that threshers will quickly change direction and ...

The three species of Thresher Sharks—Common (Alopias vulpinus), Pelagic (Alopias pelagicus), and Bigeye (Alopias superciliosus)—all share this preference for solitude, patrolling the open ocean alone ...