Silas and Quinn are either competing with each other or they have that twin thing. Obviously, they aren't identical (boy/girl), but they are so similar it's odd. The were the same birth weight which is very rare for twins and are still the same weight. As of yesterday, they were both 2 lbs. 10 oz (which is awesome), are 14.5" long, on the same amount of oxygen (2 liters at 21%) and their isolettes are the same temperature. It is also common to see their heart rate and oxygen saturation at the same levels.
I think this is just weird, but I guess I should get used to it.