Climate change could overexpose rare underwater "marimo" algae balls to sunlight, killing them off, according to a new study at the University of Tokyo. Marimo are living fluffy balls of green algae.

Scientists have solved a long-running mystery surrounding marimo, the fuzzy balls of green algae that Japan considers a national treasure. Though marimo are known for nestling adorably at the bottom ...

Industrialization developments decimated the population of “marimo” algae balls, a government-designated “special natural monument,” in Lake Akanko in Hokkaido by about 75 years ago, a research team ...

A group of Japanese researchers have discovered how to estimate the age of marimo. They also successfully illuminated a mechanism that is vital for the algae balls’ growth. These findings will be ...

Rising lake water temperatures threaten the survival of marimo, unique algal balls found only in cold lakes. Researchers clarified that the warmer it gets, the more the inward decomposition outpaces ...

These marauding mollusks breed quickly and can wreak havoc on natural waterways. Recent, unexpected sightings in Northwest pet stores have wildlife officials sounding the alarm. “It would be ...