スミソニアン博物館のインスタグラム(smithsonian) - 12月4日 07時47分

Can you guess what these are? We'll hold.
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They're not holiday lights—they're microscopic algae cells, called Thalassionema nitzschoides.
Alone, they look like straight bars, but together they form stars, snowflakes and other zigzag-like designs. Each individual cell is 10 times thinner than the thinnest strands of hair.
Thalassionema lives in warm waters all over the world. @smithsonianenvironment microbiologists found these in the Chesapeake Bay.

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