Some sociologists have affirmed, without hesitation, that community of women represented a primitive and necessary stage of the sexual associations of mankind. Surely they would have been less dogmatic on this point if, before approaching human sociology, they had first consulted animal sociology, as we have done. We have seen that many vertebrated animals are capable of a really exclusive and jealous passion, even when they are determined polygamists. As a matter of fact, the vertebrates with whom love is merely a need, like any other, seem to be a very small minority. Some among them, especially birds, are models of fidelity, constancy, and devoted attachment, which may well inspire man with feelings of modesty. Mammals, while less delicate in their love than many birds, are, however, for the most part, already on a moral level incompatible with promiscuity. The mammals nearest to man, those whom we may consider as the effigies of our nearest animal ancestors, the anthropoid apes, are sometimes monogamous and sometimes polygamous, but, as a rule, they cannot endure promiscuity. Now, this fact manifestly constitutes a very strong presumption against the basis of the theory according to which promiscuity has been, with the human species, the primitive and necessary stage of sexual unions. Do we thus mean to say that there is no example of promiscuity in human societies, primitive or not? Far from it. It would be impossible to affirm this without neglecting a large number of facts observed in antiquity or observable in our own day. But we are warranted in believing that the very inferior stage of promiscuity has never been other than exceptional in humanity. If it has existed here and there, it is that by the very reason of the relative superiority of his intelligence, man is less rigorously subject to general laws, and that he knows sometimes how to modify or infringe them; there is more room for caprice in his existence than in the life of the animals. II. _Some Cases of Human Promiscuity._ Human groups have, then, practised promiscuity, and it is not quite impossible that some of them practise it still. Exceptional as these facts may be, they are interesting to sociologists, and it is important to mention and to criticise them also. We are indebted for our knowledge of a certain number of them to the writers of Greco-Latin antiquity. I will give them in full, at least those that deserve or have obtained more or less credit. “Throughout the Troglodyte country,” relates Strabo, “the people lead a nomad life. Each tribe has its chief, or _tyrant_. The women and the children are possessed in common, with the exception of the wives and children of the chief, and whoever is guilty of adultery with one of the wives of the chief is punished by a fine consisting of the payment of a sheep.”[66]