Animal play

Definition and stakes

Portrait of John Burroughs John Burroughs,  The Atlantic

“ Of course the impulse of play in animals springs from another source—the instinct to develop the particular powers that their life-careers will most require. Puppies and kittens fight mock battles and pursue and capture mock game, kids leap and bound, colts run and leap, birds swoop and dive as if to escape a hawk: in each case training the powers that are likely to be the most useful to them in after-life. Our play-instinct is no doubt of animal origin, but not in the same sense is our sense of the humorous of animal origin. ”
Source: Wikisource

Portrait of C. Lloyd Morgan C. Lloyd Morgan,  Animal Behaviour

“ Passing now to those forms of play which afford more special preparation for particular forms of after-effort, under which fall such types as hunting-play and fighting-play, we may refer the reader to the copious examples so carefully collected by Professor Groos. The way in which a kitten pats a cork or a ball, making it roll and then pouncing upon it, is a characteristic example of animal play. Valuable as a preparation for dealing successfully with a mouse when occasion shall arise, this is a specialized form of experimentation ”
Source: Gutenberg

Portrait of James Mark Baldwin James Mark Baldwin,  The Story of the Mind

“ On this theory each play becomes a beautiful case of adaptation to nature. The kitten plays with the ball as the old cat handles the mouse; the little dogs wrestle together, and so learn to fight with teeth and claws; the deer run from one another, and so test their speed and learn to escape their enemies. If we watch young animals at play we see that not a muscle or nerve escapes this preliminary training and exercise; and the instinctive tendencies which control the play direct the activities into just the performances which the animal's later life-habits are going on to require. ”
Source: Gutenberg

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