What do female dwarves look like? The same as male dwarves? Are there any physiological differences at all?
I have a theory that there actually is a VERY reliable way to tell the difference between a male and a female dwarf, aside from the obvious one: the distribution of their muscle mass. I suspect that the males would tend to have more upper body mass (bulging biceps) while the females would have more lower body mass (six-pack just above the hips, strong legs, maybe the six-pack becomes an eight pack when she's pregnant.)
The reason I imagine it would be like this is for several reasons. First, because the female dwarves need their muscle mass lower down towards their hips and below, both so that their offspring have better access to whatever magical chemical/nutrients which makes dwarves unfailingly grow up to be really buff, also so that if they find themselves needing to take a tactical retreat to protect the future of their clan (even if it will really hurt their pride) they have stronger legs to run with, while males, who don't have this evolutionary restriction have their muscle more in their upper body for swinging axes. This also probably means the females will be slightly taller than the males, because of their bigger, stronger legs.
Other potential ways to tell the difference:
-There could be some differences in the development of young dwarves, like perhaps, maybe the females start getting facial hair before the males, or vice versa. I'm fairly certain dwarves aren't born with facial hair. If you've known dwarves since you were a child, you should be able to tell the difference.
-The obvious way (probably shouldn't do this unless you swing both ways)
Is my theory accurate at all? I really hope it is. For the sake of all of those poor clueless and heart-broken adventurers, both male and female, who've tried to woo a dwarf only to find out that they'd misjudged the dwarf's gender...I really hope it is.