title: Playful fun in dogs.
authors.affiliation: Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309-0334, USA. Electronic address: marcbekoff@gmail.com.
authors.forename: Marc
authors.initials: M
authors.lastname: Bekoff
mesh_terms: D000819:Animal Communication; D000818:Animals; D001522:Behavior, Animal; D005075:Biological Evolution; D004285:Dogs / Q000523:psychology*; D010988:Play and Playthings; D012919:Social Behavior