
Ancient nautilus greets deep-sea explorers 365 meters down
Marine researchers exploring Rotuma, Fiji, in a deep-sea submersible at about 365 metres witnessed a nautilus swim up to the vehicle and hover at eye level, a rare encounter with this ancient mollusc that inhabits the twilight zone and relies on gas-filled buoyant chambers. The moment highlights the nautilus’s continued presence in deep-sea ecosystems and underscores the importance of protecting these habitats for deep-sea species.












