-wider hips for a wider birthing canal;
-and manifestly, at least, (many) times: “s-eating for 2”;
-and, as typically seen in e.g. Olympic weightlifters who usually are not actually muscularly sculpted as bodybuilders are, but instead more “plumpily fat” in build, despite the common myth that fat can be converted into muscle’, I am inclined to observationally see that a little extra “fat” is quite conducive to these weightlifters to be able to perform better/well in their discipline. In other words, I have never seen either a definedly muscular and/or skinny (Olympic-class) weightlifters, but have seen plenty who are have tightly/firmly packed and toned “contour”/layer of fat. Ergo, the fact that females ‘add on ca. 6% more fat in their “thighs, upper arms, and pubis” from puberty’ manifestly “Practically” all is for the “Functional” work that they will be bore/handled by specifically these areas. I.e., since motherhood will often most likely involve the mother having to (also standingly/walkingly) carry around a 6-8-10+lbs baby and later increasingly heavier infant, what is indeed needed here for the woman is not actually muscular power bursts, as can be achieved by post-puberty men muscularly building up in those upper arms and thighs areas, but rather local fat that can more easily and abundantly store up lasting strength energy for that, indeed pertinent enough: also “durative”, carrying/bearing and/or moving task, -(and even when baby slings are used, the thigh muscles still need to bear that extra load). Added to that is the fact that fat can/does also store (calorific) energy, which also is helpful when having to provide such calorific energy for 2 or more, let alone adequate body heat.
 In a (not anatomically) related example, in my younger days when I was practicing hard to become a Baseball pitcher, I, in one period, overworked my pitching arm/elbow. Well I had the bright, self-conceived idea that if I would go to sleep with a lightly-tightly strapped elbow pad where it hurt, (and I don’t even recall that I placed ice in it), that I should be fine the next day. Well I woke up with a scary giant tender swollen lump on the other side of the elbow pad. That swelling eventually and soon, returned to normal (with some ice), and without causing any sequels.
 Which relatedly reminds me: If men tennis players wear shorts...why (else?) do the women [and ditto for women cheerleaders] insist on wearing crotch-high, flimsy “skirts”??!!!