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Cyanobacterial crusts from the Inland Sea

Cyanobacterial crusts from the Inland Sea

The green layer just below the surface is the cyanobacteria.

Thermal pool in Yellowstone National Park

Thermal pool in Yellowstone National Park

The colours in the crusts of the thermal features of Yellowstone are formed from different communities of cyanobacteria

Mammoth Hot Springs

Mammoth Hot Springs

Yellowstone National Park, Wyoming, USA.

Cyanobacterial crusts

Cyanobacterial crusts

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