It was a conventional Zoology undergraduate class of Cotton University. I was conveying students the topic ‘the origin of Metazoa’ and suddenly paused for a while, rushed to my lab, took out one Foldscope and allowed students to peeping into Volvox colonies through it. Then I asked students, “can you please use your own logic before I say, what do you think the initial step in the transformation from unicellular to pre-Metazoan ancestors”…and it was limitless happiness listening from them “aggregation of cells” (as they could see through Foldscope). Thereafter I did explain the proposition of Colonial theory of origin of Metazoa, that advocates multicellular animals came through association of many single celled flagellate individuals forming colonies. With the increase in the number of aggregated cells, they became more and more specialized in terms of structure and function and soon individuality of cells was lost and the whole colony itself became a single multicellular Metazoa…A regular classroom teaching got a extra mileage that day…#Indiafoldscopephase1