Final answer:
The female gender has a pelvic bone subpubic angle greater than 80 degrees, adapted for childbirth, making it wider and with a broader angle between the pubic bones than the male pelvis which has an angle of less than 70 degrees.
Step-by-step explanation:
The gender with a pelvic bone that has a subpubic angle greater than 80 degrees is the female. The female pelvis is adapted for childbirth and is therefore wider, with a larger subpubic angle, a rounder pelvic brim, and a wider and shallower lesser pelvic cavity compared to the male pelvis. The male pelvis has a subpubic angle of less than 70 degrees, making it narrower with thicker and heavier bones, and a deeper, tapering lesser pelvic cavity.
Due to evolutionary demands for reproductive fitness, the female pelvis has developed to be lighter, wider, shallower, with a broader angle between the pubic bones to facilitate childbirth. This anatomical structure allows for a larger diameter pelvic canal which has been passed down through generations, as it was advantageous for successful reproduction.