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J R Ham

Biographic Data

ID53667
NAMEJ R Ham
GIVEN NAMESJ R
FAMILY NAMEHam
SIGNATUREHAM J R
AFFILIATIONSUniversity of Lethbridge
ORCID0000-0003-2712-7768
VERIFIEDYes
TOTAL WORKS3
TOTAL CITATIONS1
AUTHOR COUNT3
EDITOR COUNT0
FIRST PUBLICATION YEAR2023
LATEST PUBLICATION YEAR2023
H-INDEX1
  • The evolution of aggressive and amicable play fighting in primates

    M Pelli, C Pellis et al.•ARTICLE•International Journal of Play•2023•References: 29

    Play fighting involves competing for an advantage, which can be derived from behavior typical of conspecific aggression, predation, sexual and other affinitive contexts. Here the phylogenetic distribution of aggressive play fighting (involving biting) and amicable play fighting (involving grooming and mounting) in juveniles of 48 species of primates was analyzed. Both aggressive and amicable play fighting were likely equally present in ancestral …

  • Self-handicapping in object play

    J R Ham, Malin K Lilley et al.•ARTICLE•International Journal of Play•2023•References: 44

    Although observed in animals from various taxa, object play is not well studied. While studying object play in managed care belugas (Delphinapterus leucas), we noticed that, in some cases, the belugas self-handicap their play. For example, a beluga may push a ball onto a ledge, so that the object can only be reached by the beluga beaching itself. Self-handicapping has been described in locomotor and social play, but is rarely, if ever, reported i…

  • Social games that belugas (Delphinapterus leucas) play

    H M Manitzas Hill, Nicole Ortiz et al.•ARTICLE•International Journal of Play•2023•Cited by: 1•References: 57

    Play is an important indicator of physical strength, cognitive functioning, and overall welfare for animals. Performed independently or cooperatively, play provides animals, including humans, opportunities to test and practice various physical abilities, social interactions, and object investigations. One area that is often overlooked in animal play is the presence and nature of games. Sometimes considered the social glue of human cultures, games…

  • Social games that belugas (Delphinapterus leucas) play

    H M Manitzas Hill, Nicole Ortiz et al.•ARTICLE•International Journal of Play•2023•Cited by: 1•References: 57

    Play is an important indicator of physical strength, cognitive functioning, and overall welfare for animals. Performed independently or cooperatively, play provides animals, including humans, opportunities to test and practice various physical abilities, social interactions, and object investigations. One area that is often overlooked in animal play is the presence and nature of games. Sometimes considered the social glue of human cultures, games…

  • The evolution of aggressive and amicable play fighting in primates

    M Pelli, C Pellis et al.•ARTICLE•International Journal of Play•2023•References: 29

    Play fighting involves competing for an advantage, which can be derived from behavior typical of conspecific aggression, predation, sexual and other affinitive contexts. Here the phylogenetic distribution of aggressive play fighting (involving biting) and amicable play fighting (involving grooming and mounting) in juveniles of 48 species of primates was analyzed. Both aggressive and amicable play fighting were likely equally present in ancestral …

  • Self-handicapping in object play

    J R Ham, Malin K Lilley et al.•ARTICLE•International Journal of Play•2023•References: 44

    Although observed in animals from various taxa, object play is not well studied. While studying object play in managed care belugas (Delphinapterus leucas), we noticed that, in some cases, the belugas self-handicap their play. For example, a beluga may push a ball onto a ledge, so that the object can only be reached by the beluga beaching itself. Self-handicapping has been described in locomotor and social play, but is rarely, if ever, reported i…

  • Social games that belugas (Delphinapterus leucas) play

    H M Manitzas Hill, Nicole Ortiz et al.•ARTICLE•International Journal of Play•2023•Cited by: 1•References: 57

    Play is an important indicator of physical strength, cognitive functioning, and overall welfare for animals. Performed independently or cooperatively, play provides animals, including humans, opportunities to test and practice various physical abilities, social interactions, and object investigations. One area that is often overlooked in animal play is the presence and nature of games. Sometimes considered the social glue of human cultures, games…

Biology (3 works) · Computer Science (3 works) · Ecology (3 works) · Primate Behavior and Ecology (3 works) · Psychology (3 works) · Beluga (2 works) · Marine animal studies overview (2 works) · Social Psychology (2 works) · Aggression (1 works) · Animal Vocal Communication and Behavior (1 works)

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