Tigress or savage woman, her struggle with the rough conditions of primal existence is only less fierce and less strenuous than her mate's. It demands the positive male-qualities (which manifest first in stature, strength and pugnacity) only less in degree than does his, therefore. The negative female qualities which, manifesting first in passivity and surrender, detract from her fierceness and activity, would have made for extinction of species had they not been defended by those of her fighting mate, as too by the male-traits she herself had inherited from her fighting father. They could only evolve, accordingly, precisely in proportion as they were sheltered behind the male dominant powers. The tiger shelters his tigress only during her maternal phases, however. Her cubs brought forth, suckled, reared, and thrust into the jungle to fend for themselves, she must fight her own battles for food and existence. And her brief maternal phases being all too short for more than the scantest development of female traits--which derive their fullest impulse in their exercise as mother-traits--she remains a tigress merely, and produces tiger offspring merely, because only tigerishness secures survival in her domain of life and attribute. With the further advance of progressing species, savage woman has evolved from savage brute to savage woman by way of such increasing shelter and protection by her Dominant mate as have permitted the slow and gradual evolution of the Recessive Woman-traits in her; and thereby the evolution of the Woman-sex. Her maternal phases and the unfitnesses of these become ever more prolonged and incapacitating; her offspring demands ever longer periods of suckling, devotion and care, as both she and it rise higher in the scale of organisation. Thus, Sex has evolved in the male by response to the ever-increasing claims upon him, by the female and by offspring, of his traits of protective chivalry and intelligent effort. And Sex has evolved in the female by response to the ever-increasing claims by offspring upon her, of her traits of devotion and ministry. The evolution of the Woman-attributes has been rendered possible only by that protection accorded by the male to the female as the due of her maternal unfitnesses; securing thus for her and for offspring a more privileged and kindlier environment. Environment which, evoking less of fight and physical stress, enabled her inherent milder, self-surrendering Recessive traits to emerge, to unfold, and to function increasingly in life and heredity.