Sometimes it is really subtle things that are tell tale about the inate differences. Watching my son and daughter and also my nieces and nephews and great nieces and nephews play with toy cars. . .without exception all the little boys made motor noises playing with those cars, and without exception not one of the little girls made motor noises playing with those cars. That is not learned behavior. It is just something hardwired into the circuitry. Important? Not at all. But it should inform us that God made men and women as different beings.
And probably the men were given the greater size, strength, speed, etc. because they would naturally be the hunters, gatherers, providers, protectors. And the women were given their own special kinds of stamina and abilities because they would bear the children and be the primary nurturers of those children and their community as well as making a home and being the heart of it. Does that mean men cannot be nurturers and/or homemakers or that women cannot be providers? Of course not. But there is a kind of natural rhythm in it all and I think we try to alter it at our peril.