The video shows a colony of approximately 100 ?m long of genus Eudorina composed by 32 vegetative by-flagellated cells. The flagella (cellular hair-like protuberances 60 ?m long) in movement are clearly visible. Video produced by Microvistas: Dr. Jos? Mar?a G?mez G?mez-OAS-BioAStronomy Group, Segurilla (Spain).