Invited talk at Erice Workshop: Self-Organization in Active Matter: from Colloids to Cells Held in Erice, Italy (Sicily) during the dates October 2-5, 2018. Simon K. Schnyder, John J. Molina, Ryoichi Yamamoto, Highly non-trivial motions of crawling and proliferating cells on substrate Erice Workshop [foogallery id=”599″]