Marine researchers exploring deep water near Rotuma recorded a rare close encounter with a nautilus, an ancient marine animal often described as a living link to a much earlier era of life on Earth. The sighting happened about 365 metres below the surface, where the animal swam up to the team’s underwater vehicle in the darkness of the Pacific.
The moment stood out because nautiluses are not commonly seen at such close range during live underwater missions. The striped creature approached the submersible as scientists carried out their work, giving the expedition an unusual look at a species that has existed long before the age of the dinosaurs.
Nautiluses are known for their distinctive coiled shells and deep-water habits, which make encounters like this especially striking. Seeing one move calmly beside a research vehicle offers a glimpse into a part of the ocean that remains difficult to study and rarely observed by the public.
The discovery also highlights how deep-sea expeditions around remote Pacific islands can reveal animals with extraordinarily long evolutionary histories. In this case, the unexpected appearance of a nautilus turned a routine exploration into a memorable look at one of the ocean’s oldest surviving lineages.
