Dutch scientists may have solved mystery of why some twins are identical

Two of the many identical twins attending the annual twins festival in Twinsburg, Ohio. Photograph: Josie Gealer/Getty Images

Two of the many identical twins attending the annual twins festival in Twinsburg, Ohio. Photograph: Josie Gealer/Getty Images

source https://www.theguardian.com/science/2021/sep/29/dutch-scientists-may-have-solved-mystery-of-why-some-twins-are-identical