Happy Saint Patrick’s Day!

Here’s a fun fact for you (nothing to do with St. Paddy): that green you see in this image is thermophilic (heat-loving) algae. And it’s a red algae called Cyanidium that doesn’t have the pigment for the color red. So it’s green. You can see this in Porcelain Basin at Yellowstone National Park.

Copyright Rebecca L. Latson, all rights reserved.

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