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.

A team of scientists from Hokkaido University has suggested that marimo maintain their characteristic spherical shape due to the rarity of the formation of reproductive cells. The marimo is the ...

The bottom of Lake Saadjärv in central-eastern Estonia is home to the rare marimo moss ball (Aegagropila linnaei), a species of algae that grows into velvety green balls and is considered a symbol of ...