(11) When prey has been killed by a pack of wolves, there follows a greedy struggle over the carcass, each trying to get as big a meal as possible. Mr. Th. Roosevelt writes of dogs used in hunting the cougar (puma): “The relations of the pack amongst themselves (when feeding) were those of wild beast selfishness.... They would all unite in the chase and the fierce struggle which usually closed it. But the instant the quarry was killed, each dog resumed his normal attitude of greedy anger or greedy fear toward the others.”[50] As this was a scratch pack of hounds, however, we cannot perhaps infer that a naturally formed pack of wolves is equally discordant, or that the human pack was ever normally like that. Galton, indeed, says: “Many savages are so unamiable and morose as to have hardly any object in associating together, besides that of mutual support;”[51] but this is by no means true of all savages. At any rate, the steadier supply of food obtained by our race since the adoption of pastoral or agricultural economy, with other circumstances, has greatly modified the greedy and morose attitude in many men and disguised it in others; though it reappears under conditions of extreme social dislocation, and it is a proverb that “thieves quarrel over their plunder.” In the original pack such a struggle over the prey may have subserved the important utility of eliminating the weak, and of raising the average strength and ferocity. But some custom must have been established for feeding the women and children. No doubt when fruits were obtainable, the women and children largely subsisted upon them. But the strong instinct of parental care in Primates, the long youth of children, and the greater relative inferiority of females to males (common to anthropoids and savages) than is found amongst dogs and wolves, must have made the human pack from the first differ in many ways from a pack of wolves.
So much, then, as to the traits of character established in primitive man by his having resorted to co-operative hunting: they all plainly persist in ourselves.
On our intelligence life in the hunting-pack had just as revolutionary an influence, as already explained in the first chapter. The whole art of hunting had to be learned from its rudiments by this enterprising family. With them there was no inherited instinct or disposition, and no tradition or instruction, as there is with the true carnivores: they depended solely on observation, memory, inference. With poor olfactory sense (as usual in apes) prey must be followed and inconvenient enemies outwitted, by acquiring a knowledge of their footprints and other visible signs of neighbourhood, and by discrimination of all the noises they make. The habits and manners of prey and of enemies, their favourite lairs, feeding-grounds and watering-places, their paths through forest, marsh, thicket and high grass, must all be learnt: so must their speed, endurance, means and methods of attack and defence. The whole country within the range of the pack must be known, its resources and its difficulties; and whenever new territory was entered, new lessons in all these matters had to be learned. This must have entailed a rapid natural selection of brains. Only a rapidly developing, plastic brain could have been capable of the requisite accommodation of behaviour in such conditions: a mechanism was required by which more and more new lines of specialised reaction were related to numerous newly observed and discriminated facts.