User blog comment:VeryUnknownFan/Jayden-G's review of Twinning Isn't Everything/@comment-28381748-20140709070947/@comment-10310224-20140710035323

Well, its kinda complicated. As being a twin itself is rare, but with the now common use of of drugs that help parents who have trouble having kids, fraternal twins are becoming a lot more popular. However, most twins who are fraternal will appear identical, as just your eye color can be your difference. But actually, depending on what race you are it can effect your chance.

But going out of facts, out of five twins in my grade, only one pair is actually identical. But all but one you can easily tell there twins.