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🌊 Ocean Science

200 Previously Unknown Species Discovered in Pacific Deep-Sea Vent Ecosystem

At 4,000 metres beneath the Pacific, researchers found a hydrothermal vent community so biologically distinct it may require a new branch of the tree of life.

P. Rao, Environment Correspondent March 7, 2026 6 min read

OCEAN

The ROV Nereid captured the first images of the Prometheus Field vent system.

The vent field, named the Prometheus Field, spans approximately 12 square kilometres and supports a biological community of extraordinary density and diversity. Preliminary analysis has identified at least 217 species new to science.

217

New Species

4,023m

Depth

12 km²

Vent Field Area

200 Previously Unknown Species Discovered in Pacific Deep-Sea Vent Ecosystem

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