Random mutations from the environment. Cosmic rays. These can occur after the zygote has split into the twins. If it happened in a gene relating to features, they could look slightly different.
“Random mutations from the environment. Cosmic rays. These can occur after the zygote has split into the twins. If it happened in a gene relating to features, they could look slightly different.”
Since no identical twins are ever identical, are you saying this always happens? ...and your evidence for that would be what? Or is this more evolutionary conjecture and story-telling?
Hank