The Play of Animals

Karl Groos

1/1898 · D. Appleton and Company

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"In this volume Professor Groos makes a contribution to three distinct but cognate departments of inquiry: philosophical biology, animal psychology, and the genetic study of art. The world of play, to which art belongs, stands in most important and interesting contrast with the stern realities of life; yet there are few scientific works in the field of human play, and none at all in that of animal play--a fact to be accounted for, probably, by the inherent difficulties of the subject, both objective and subjective. The animal psychologist must harbour in his breast not only two souls, but more; he must unite with a thorough training in physiology, psychology, and biology the experience of a traveller, the practical knowledge of the director of a zoological garden, and the outdoor lore of a forester. And even then he could not round up his labours satisfactorily unless he were familiar with the trend of modern aesthetics. Groos holds play to be an instinct developed by natural selection, and to be on a level with the other instincts which are developed for their utility. Its utility is, in the main, twofold: First, it enables the young animal to exercise himself beforehand in the strenuous and necessary functions of its life and so to be ready for their onset; and, second, it enables the animal by a general instinct to do many things in a playful way, and so to learn for itself much that would otherwise have to be inherited in the form of special instincts; this puts a premium on intelligence, which thus comes to replace instinct"--Preface. (PsycINFO Database Record (c) 2010 APA, all rights reserved).