Silhouette of Little Hercules as it approaches extinct hydrothermal sulfide spire along the Galápagos Rift.
Little Hercules
Image courtesy of NOAA Office of Ocean Exploration and Research. Download larger version (jpg, 2.0 MB).

Silhouette of Little Hercules as it approaches extinct hydrothermal sulfide spire along the Galápagos Rift.

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