Amazing paper on the behavioral genetics of dogs.
"Terriers largely clustered in the bottom left of the plot, consistent with predatory behavior and dog-directed aggression, while companion and toy dogs clustered along the right, consistent with increased social and non-social fear."
"The most significant positive correlations were between the herder lineage and non-social fear (p = 1.86Eā5, r = 0.64), and the terrier lineage and predatory chasing (p = 1.96Eā5, r = 0.69), the latter being consistent with working roles involving catching and killing prey."
"Strikingly, the most significant negative correlation was between the scent hound lineage and trainability, consistent with selection for traits advantageous to an independently driven working style focused on following instincts rather than seeking out human cues."
"Herder, scent hound, and terrier lineages showed the most robust behavioral correlations [+] significant lineage-associated gene enrichment in one or more prefrontal areas of the cortex associated with human social cognition, decision-making, and emotional intelligence."
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