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Jealousy in dogs.

Christine R Harris1, Caroline Prouvost1

  • 1University of California San Diego, La Jolla, California, United States of America.

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|July 24, 2014
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This summary is machine-generated.

Dogs exhibit jealousy, a complex emotion previously thought unique to humans. This study found dogs display more jealous behaviors when owners interact with other dogs compared to inanimate objects, suggesting a primordial form of jealousy in social species.

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Area of Science:

  • Comparative psychology
  • Animal behavior
  • Canine cognition

Background:

  • Jealousy is often considered a uniquely human emotion due to its complex cognitive components.
  • From an evolutionary standpoint, jealousy may have evolved to protect social bonds, suggesting its potential presence in other social species.
  • Dogs, being highly social and cognitively advanced, are suitable candidates for studying jealousy in non-human animals.

Purpose of the Study:

  • To investigate the presence of jealousy in domestic dogs.
  • To adapt a research paradigm used in human infant studies for canine subjects.
  • To determine if dogs exhibit jealousy-like behaviors in response to owner interactions with perceived social rivals.

Main Methods:

  • An experimental design was employed, adapting a human infant jealousy paradigm.
  • Dogs' behavioral responses were observed when their owners displayed affection towards either a realistic dog model or a nonsocial object.
  • Jealous behaviors such as snapping, barrier attempts, and owner-directed physical contact were recorded.

Main Results:

  • Dogs displayed significantly more jealous behaviors when owners interacted with the dog model compared to nonsocial objects.
  • Specific behaviors included snapping, attempting to get between the owner and the dog model, and pushing or touching the owner or model.
  • These findings indicate a clear behavioral response indicative of jealousy in dogs.

Conclusions:

  • The study provides evidence for a primordial form of jealousy in domestic dogs.
  • These findings support the hypothesis that jealousy is not exclusive to humans and may exist in other social species.
  • The results suggest that jealousy, or its evolutionary precursor, plays a role in maintaining social bonds in canids.