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Aquifex, Thermocrinis, and Related Bacteria

Aquificae habitat
White flocculent mats in and around the extremely gassy, high-temperature (>100°C, 212°F) white smokers at Champagne Vent.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Champagne vent white smokers."
http://en.wikipedia.org/wiki/File:Champagne_vent_white_smokers.jpg
Wikipedia
Public domain.