Mary Kate and Ashley Olsen have this really uncanny knack of looking nothing alike for two people who are supposed to be, you know, identical twins. These days Mary Kate looks like the love child of Edward Scissorhands and The Joker, while Ashley looks like she was birthed from your garden variety woodland gnome. Although I say "garden variety" when really they're only indigenous to parts of Northern California and Oregon. "The more you know."
They are fraternal twins, not identical.
That could be because they aren't identical
One likes to dress hippy, the other dress preppy. One looks healthy, the other does coke binges. One killed Heath Ledger, the other serial dates. We get it, you both have your own personalities!