KUSHIRO, Hokkaido—“Marimo” moss balls, the fuzzy green spheres that have brought fame to Lake Akanko here, are shrinking because of global warming, a research group found. The maximum surface ...
Marimo are a unique growth form of lake algae and used to be found in cold lakes in Japan and Northern Europe. However, the only place where specimens larger than 20 cm in diameter can now be found is ...
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