This Book List Sectory 06Simple things make This Book List sweeter for the experience. | |
This Book List Sectory 06To those whose acquaintance with fish is mainly culinary, it may seem odd to hear that the father stickleback alone takes part in the care of the nursery. But this is the rule among the whole class of fish; wherever the young are tended, it is almost always the father, not the mother, who undertakes the duty of incubation. Only two instances occur where the female fish assumes maternal functions towards her young; about these I shall have more to say a little later on. We must remember that reptiles, birds, and mammals are in all probability descended from fish as ancestors, and it is therefore clear that the habit of handing over the care of the young to the female alone belongs to the higher grades of vertebrates--in other words, is of later origin. We need not be astonished, therefore, to find that in many cases among birds and other advanced vertebrates a partial reversion to the earlier habit not infrequently takes place. With doves, for example, the cock and hen birds sit equally on the eggs, taking turns about at the nest; and as for the ostriches, the male bird there does most of the incubation, for he accepts the whole of the night duty, and also assists at intervals during the daytime. There are numerous other cases where the father bird shares the tasks of the nursery at least equally with the mother. I will glance first, however, at one of the rare exceptions among fish where the main duty does not devolve on the devoted father. Nevertheless, I was stirred agreeably by the imagination of the shells smashing the Emden and the men inside the Emden, and when I read the other day that the naval guns had destroyed over 4,000 men in the German trenches about Middlekirche I remarked that we were "doing well." It is only on the whole that we who want to end war hate and condemn war; we are constantly lapsing into fierceness, and if we forget this lurking bellicosity and admiration for hard blows in our own nature then we shall set about the task of making an end to it under hopelessly disabling misconceptions. We shall underrate and misunderstand altogether the very powerful forces that are against pacifist effort.
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