Marimo - Mysterious Living Spheres

Lake Akan on the Japanese island of Hokkaido is said to be the last place on Earth where algae balls called Marimo grow in the wild. The spherical shape makes photosynthesis difficult, so scientists have long wondered how Marimo survive. NHK obtained permission to film their habitat for a year, in the first project of its kind. Join us as we explore a spectacle of nature in Lake Akan.