3 ms·

Yeah, but they also grew in same uterine environment.

• carbocation 9y ago
  True! But this seems to set some limits the timeline of significant environmental influence.
• mbreese 9y ago
  They also probably grow up together, have similar diets, speak the same language... there are lots of correlated environmental factors with twins aside from their DNA. A better comparison would be separated twins (widely separated). But I'm not sure if anyone has looked at the relative differences between twins raised together vs apart.
  • findyoucef 9y ago
    There is a documentary I think on Netflix of twins who find each other randomly on the internet. I think the were Korean and we're adopted by two families. One in California and another in France.
  • bmsran 9y ago
    It is common to compare traits in monozygotic vs dizygotic twins to help control for shared environments.
  • Mayzie 9y ago
    > A better comparison would be separated twins (widely separated). The two people in The Parent Trap are twins and were widely separated, yet they still looked identical, so much so that their parents could not even tell them apart.