Are they identical?

At first we thought our twins were fraternal, and since they were in separate amniotic sacks/each had their own placenta in the womb, chances are low that they'd be identical. In addition, my grandmother on my dad's side was a twin, and only the fraternal twins gene is hereditary. But in the last few days the boys are looking more and more alike! I suppose only time will tell. (This is Max, by the way!) If you look at yesterday's photo of Sam, you'll see how similar they're looking!