Chain of bacteria growing in hot spring pool. Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA

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Photo credit: © Gabbro / Alamy / Afripics
License: Licensed
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Keywords: algae, america, american, bacteria, biological, biology, chain, deposits, feature, geothermal, hot, landscape, life, mammoth, micro, microbe, national, nature, north, outdoor, park, pool, spring, springs, state, steam, travel, united, usa, wyoming, yellowstone