...subjects of natural selection. Tribes in which such mental and moral qualities were predominant would have an advantage in the struggle for existence over other tribes in which they were less developed, and would live and maintain their numbers, while the others would decrease and finally succumb." l...

...subjects of natural selection. Tribes in which such mental and moral qualities were predominant would have an advantage in the struggle for existence over other tribes in which they were less developed, and would live and maintain their numbers, while the others would decrease and finally succumb." 1...

...an advantage in the struggle for existence over other tribes in which they were less developed, and would live and maintain their numbers, while the others would decrease and finally succumb." 1 The most conspicuous result of this unceasing operation of natural selection upon rival communities...

...terms of reproductive success. Thus 'tribes in which such . . . qualities were predominant, would . . . have an advantage in the struggle for existence over...while the others would decrease and finally succumb' (1870:313, 317). The implications of this position are far-reaching, and again we owe their explicit...

...of inclement seasons and impending famine, more surely than could any merely physical modification. Tribes in which such mental and moral qualities were...physical geography, or of climate, make it necessary for an animal to alter its food, its clothing, or its weapons, it can only do so by a corresponding change...

...especially those with high intelligence, foresight, sympathy, a sense of right, and self-restraint: "Tribes in which such mental and moral qualities were...numbers, while the others would decrease and finally succumb."49 Wallace argued that the harsher, more challenging climate of northern Europe had produced...

...upon animals so defective" (11). Paradoxically, however, tribes able to protect their weaker members "would therefore have an advantage in the struggle for existence over other tribes in which they [the social virtues] were less developed, would live and maintain their numbers, while the others would...

...of inclement seasons and impending famine, more surely than could any merely physical mo<iification. Tribes in which such mental and moral qualities were...they were less developed, would live and maintain thoir numbers, while the others would decrease and finally succumb. Again, when any slow changes of...