Jealousy may have evolved to protect valuable social bonds from interlopers, but some researchers have suggested that it is linked to self-awareness and theory of mind, leading to claims that it is unique to humans. We presented dogs (<i>N</i> = 18; 11 females; age: <i>M</i> = 4.6 years, <i>SD</i> = …
Source: https://pubmed.ncbi.nlm.nih.gov/33825583/