Hydrothermal-vent chimney. In the center of the photo, you can see the vent fluid which appears like dark smoke due to the high levels of minerals and sulfides contained in the fluid. Look closely, and you will also see the chimney is crawling with Chorocaris shrimp and Austinograea wiliamsi crabs.

Hydrothermal-vent chimney. In the center of the photo, you can see the vent fluid which appears like dark smoke due to the high levels of minerals and sulfides contained in the fluid. Look closely, and you will also see the chimney is crawling with Chorocaris shrimp and Austinograea wiliamsi crabs. Image courtesy of the NOAA Office of Ocean Exploration and Research, 2016 Deepwater Exploration of the Marianas.

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2016 Deepwater Exploration of the Marianas

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