Watermelon snow

Rarity: Common

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At a glance

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Notion

Domain

Science and technology

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What Wikipedia says

Watermelon snow, also called snow algae, pink snow, red snow, or blood snow, is a phenomenon caused by Chlamydomonas nivalis, a species of green algae containing a secondary red carotenoid pigment (astaxanthin) in addition to chlorophyll.

Excerpt from the Wikipedia article “Watermelon snow”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Dick Culbert from Gibsons, B.C., Canada, CC BY 2.0, via Wikimedia Commons.