The play of American porcupines (Erethizon d. dorsatum and E. epixanthum).

1 June 1944

journal article
research article
Published by American Psychological Association (APA) in Journal of Comparative Psychology

Vol. 37 (3) , 145-150
https://doi.org/10.1037/h0057423

Abstract

Several animals were observed, and play behavior is discussed under the headings: materials; play types; degree of playfulness; solitary play; the exercise dance; collective play; duration of play; individuality of vocalization.

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