The twins are identical to the two-octopus twins
Perhaps you’ve met with families and friends who are twin or have twins, but what many do not know is that two types of twins form in the mother’s uterus in completely different ways. The composition of the sperm and ovum forms a sigotum that later becomes a fetus. But sometimes this zigot is divided into two embryos, which will eventually produce identical twins. That’s why these single-sigmoid twins have the same DNA.