Paternal, filial, brotherly, and sisterly love, comparatively weak and undeveloped in man, are indeed almost absent in the lower animals. Birds of the same brood do not recognise each other after they have left their nest; and a dog will not hesitate to attack his own brother as a stranger after a year’s separation. The part which a male bird takes in feeding and protecting the young is, as Horwicz suggests, an element of his conjugal rather than his paternal feeling; and a young animal that would risk its own life in defence of its mother or father is yet to be heard from.
Friendship, however, does exist between animals, as we have already seen; and not only among animals of the same species, but of different species. “Happy families” of animals commonly hostile to each other have been known outside of the showman’s cage. Büchner cites instances of friendship between a robin and a cat; a fox and duck; dog and deer; cat and mouse; and even such absurdly incongruous cases of attachment as between a crow and a bull; a dog and an elephant; a cat and a rattlesnake. But the deepest feeling of friendship which any animal is capable of feeling is undoubtedly the dog’s love of his master. “Professor Braubach,” says Darwin, “goes so far as to maintain that a dog looks on his master as on a god.” “It is said,” he adds in a footnote, “that Bacon long ago, and the poet Burns, held the same notion.”
Maternal and conjugal affection, however, are, as in man, so in animals, the two strongest forms of family attachment. A French author, M. Menault, has written a special treatise on L’Amour Maternel chez les Animaux, and Dr. Büchner exclaims, à propos: “If a human mother, with certain destruction staring in her face, dashes into a burning house to save her imperilled child, and thus finds her own death, this sacrifice is no greater, no more heroic, than that of a stork-mother who, after vain efforts to save her brood, is voluntarily burnt up with them in her nest; or of those elephant-mothers who, as Schweinfurth narrates, in the African hunting expeditions, when the bushes along the shore are ignited in order to drive out the elephants, seek to save their young ones by filling their trunks with water and sprinkling it over them, while they themselves are roasting.”
How low down in the scale of animal life traces of conjugal attachment are to be found is shown by the following case cited by Darwin: “An accurate observer, Mr. Lonsdale, informs me that he placed a pair of landsnails, one of which was weakly, into a small and ill-provided garden. After a short time the strong and healthy individual disappeared, and was traced by its track of slime over a wall into an adjoining well-stocked garden. Mr. Lonsdale concluded that it had deserted its sickly mate, but after an absence of twenty-four hours it returned, and apparently communicated the result of its successful exploration, for both then started along the same track and disappeared over the wall.” Again, the naturalist, Mr. Bate, experimented on the conjugal feelings of Gammarus marinus, or the sandskipper common on English shores, by separating a male from its female, and imprisoning both in the same vessel with many individuals of the same species. “The female, when thus divorced, soon joined the others. After a time the male was put again into the same vessel; and he then, after swimming about for a time, dashed into the crowd, and without any fighting at once took away his wife. This fact shows that in the Amphipoda, an order low in the scale, the males and females recognise each other, and are mutually attached.”
Concerning birds, Darwin remarks: “It has often been said that parrots become so deeply attached to each other that when one dies the other pines for a long time; but Mr. Jenner Weir thinks that with most birds the strength of their affection has been much exaggerated. Nevertheless, when one of a pair in a state of nature has been shot, the survivor has been heard for days afterwards uttering a plaintive call; and Mr. St. John gives various facts proving the attachment of mated birds. Mr. Bennett relates that in China after a drake of the beautiful mandarin Teal had been stolen, the duck remained disconsolate, though sedulously courted by another mandarin drake, who displayed before her all his charms. After an interval of three weeks the stolen drake was recovered, and instantly the pair recognised each other with extreme joy.” “Dr. Buller says (Birds of New Zealand) that a male king lory was killed, and the female ‘fretted and moped, refused her food, and died of a broken heart.’ ”
But there are exceptions to this rule of conjugal attachment and fidelity, as is shown in the following quotation, which completes the curious analogy between human and bird love connubial: “Mr. Harrison Weir has himself observed, and has heard from several breeders, that a female pigeon will occasionally take a strong fancy for a particular male, and will desert her own mate for him. Some females, according to another experienced observer, Riedel, are of a profligate disposition, and prefer almost any stranger to their own mate. Some amorous males, called by our English fanciers ‘gay birds,’ are so successful in their gallantries that, as Mr. H. Weir informs me, they must be shut up on account of the mischief which they cause.”
So there are Don Juans even among pigeons!
Intermarriages or mixed unions also occur among birds. Says Darwin: “It is certain that distinct species of birds occasionally pair in a state of nature and produce hybrids. Many instances could be given: thus Macgillivray relates how a male blackbird and female thrush ‘fell in love with each other,’ and produced offspring. Several years ago eighteen cases had been recorded of the occurrence in Great Britain of hybrids between the black grouse and pheasant. … A male widgeon, living with females of the same species, has been known to pair with a pintail duck. Lloyd describes the remarkable attachment between a shield-drake and a common duck. Many additional instances could be given; and the Rev. E. S. Dixon remarks that ‘those who have kept many different species of geese together, well know what unaccountable attachments they are frequently forming, and that they are quite as likely to pair and rear young with individuals of a race (species) apparently the most alien to themselves, as with their own stock.’ ”
In their marriages animals have anticipated man in every possible arrangement—promiscuity, polygamy, monogamy, polyandry. According to Darwin, “Many mammals and some few birds are polygamous, but with other animals belonging to the lower classes I have found no evidence of this habit.” He has not “heard of any species in the Orders of Cheiroptera, Edentata, Insectivora, and Rodents being polygamous, excepting that among the Rodents the common rat, according to some rat-catchers, lives with several females.” Among the terrestrial carnivora the lion seems to be the only polygamist, while the marine carnivora are “eminently polygamous.”
Domestication sometimes has the bad effect of converting wild birds to Mormonism. Thus “the wild duck is strictly monogamous, the domestic duck highly polygamous.”
It is among wild birds in general that the most remarkable cases of conjugal attachment in the animal world are found. And since most birds are monogamous, pairing sometimes even for life, we may hence draw the important conclusion that among animals, as among men, monogamy seems to favour the development of conjugal love. Polygamy, on the other hand, everywhere introduces jealousies, rivalries, discords. Among Oriental nations where polygamy prevails, each wife must have her own apartments, and no one would dare to taste food prepared by another, for fear of poison. On some animals polygamy seems to have a similar effect, for we read that “Mr. Bartlett believes that the Lophophorus, like many other gallinaceous birds, is naturally polygamous, but two females cannot be placed in the same cage with a male, as they fight so much together.”
COURTSHIP
The foregoing illustrations, many of which show