>> you're going to see it shortly. >> i see the shark. it's beautiful. he's looking right at my camera. see him? dorsal came right out. what a beauty. so we've discovered the white shark numbers are increasing here off of cape cod and have been roughly for the last decade. we believe that's driven by the growing seal population. and those seals, which are piled up here on the coastline of cape cod, are drawing these white sharks in, because white sharks feed on seals. now we have the opportunity to study them for the first time. he's dead ahead of me, slow down. magnet off. he's coming up.