Whitetip Reef Shark
Triaenodon obesus
Sighting evidence at IJNS Nagato, Bikini Atoll
Photo: Craig Fujii · CC BY-NC-ND
Whitetip reef sharks rest in loose aggregations inside the Nagato's gun turrets and hull cavities during daylight hours, emerging at dusk to hunt cooperatively in packs through the wreck's interior corridors. Unlike most sharks, they can pump water over their gills while stationary, allowing extended rest periods — their nocturnal pack-hunting of reef fish and octopus is among the most coordinated predatory behavior seen in sharks.
Evidence at this site
No confirmed records on file at this site
Whitetip Reef Shark is listed as a curated species here based on historical reports.