Anonymous wrote:This is such an awful study. Makes my researcher heart hurt.

Why, because it’s self-report? Lots of studies use self-report. The peer reviewers at Science certainly didn’t think it was awful or they wouldn’t have published it.

Paywall so I can’t read it, but I don’t believe there are no differences in breeds. Otherwise, why not have chihuahuas or golden retrievers as military dogs? Or, why not have a mastiff or Dalmatian to herd sheep? Because the dogs were bred to be genetically different behaviorally.