“...play [is] an instinct developed by natural selection ... and ... on a level with the other instincts which are developed for their utility. It is very near, in its origin and function, to the instinct of imitation, but yet… — Karl Groos Copy Share Image
![“...play [is] an instinct developed by natural selection ... and ... on a level with the other instincts which are developed for their utility. It is very near, in its origin and function, to the instinct of imitation, but yet they are distinct … Its utility is, in the main, twofold: First, it…” quote by Karl Groos](https://sms4smile.com/quotes/img-quotes/2c5/karl-groos-64240_instinct_play-is-an-instinct-developed-by-natural_203566.jpg)