Son is barely 5 months old and already has one tooth. as in has busted through the gums and shining white in all its glory.
Daughter didn't get her first tooth until a month or two later. and she got her first two at the same time.
it still blows my mind that these two kids, who come from the same mother and father look and act nothing alike.
as soon as I can manage a picture, I'll post it.