When do octopuses play? Effects of repeated testing, object type, age, and food deprivation on object play in Octopus vulgaris.

@article{Kuba2006WhenDO,
  title={When do octopuses play? Effects of repeated testing, object type, age, and food deprivation on object play in Octopus vulgaris.},
  author={Michael J. Kuba and Ruth A. Byrne and Daniela V. Meisel and Jennifer A. Mather},
  journal={Journal of comparative psychology},
  year={2006},
  volume={120 3},
  pages={
          184-90
        }
}
Studying play behavior in octopuses is an important step toward understanding the phylogenetic origins and function of play as well as the cognitive abilities of invertebrates. Fourteen Octopus vulgaris (7 subadults and 7 adults) were presented 2 Lego objects and 2 different food items on 7 consecutive days under 2 different levels of food deprivation. Nine subjects showed play-like behavior with the Lego objects. There was no significant difference in play-like behavior corresponding to food… 

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