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Unknown Lifeform Discovered in Ryukyu Trench Defies Classification
May 6, 2026
Posted 1 hour ago by
Researchers lowered cameras to a depth of 9,130 meters in the Ryukyu Trench and discovered an organism unlike any known to science. The creature has been provisionally classified as Animalia incerta sedis, meaning its exact position in biological taxonomy remains unknown. The team from the Minderoo-UWA Deep-Sea Research Centre conducted a two-month expedition aboard the research vessel DSSV Pressure Drop.
Using the manned submersible Limiting Factor, scientists explored three deep-sea trenches off the coast of Japan: the Izu-Ogasawara Trench, the Japan Trench, and the Ryukyu Trench. In total, researchers recorded 108 different groups of organisms. However, one creature could not be identified.
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