Photomicrographs of a subseafloor thermophile isolated from deep-sea hydrothermal vent fluids.

Photomicrographs of a subseafloor thermophile (a life form that thrives in heat) isolated from deep-sea hydrothermal vent fluids. This organism eats sulfur and hydrogen and fixes its own carbon from carbon dioxide. Shown here are scanning electron micrographs (A,B) , and transmission electron micrographs thin sections (C, D). Image courtesy of Julie Huber.

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