A snailfish filmed alive at 8,336 meters in the Izu-Ogasawara Trench. A ram’s horn squid caught on video for the first time in its natural habitat at roughly 850 meters. A juvenile colossal squid, about 30 centimeters long, recorded near the South Sandwich Islands at 600 meters on March 9, 2025. Across separate expeditions, remotely operated vehicles and autonomous landers are returning footage of deep-sea animals that no human had previously observed alive, and the pace of these discoveries is accelerating as robotic dive hours climb.
The string of firsts is not coincidental. Institutions operating deep-rated robots have been steadily expanding both the number of dives and the quality of the cameras they carry into the ocean’s least-explored zones.
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