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Study: Dogs Experience Profound Personality Changes As They Age – Study Finds

When humans go through big changes in life, their personality traits can change. We found that this also happens with dogs and to a surprisingly large degree, explains lead author William Chopik, professor of psychology at MSU, in a university release. We expected the dogs personalities to be fairly stable because they don t have wild lifestyle changes humans do, but they actually change a lot. We uncovered similarities to their owners, the optimal time for training and even a time in their lives that they can get more aggressive toward other animals.

via www.studyfinds.org

Our dogs — Chopi is getting more mellow but is starting to get more aggressive about people walking down the street. Mitzi is crazier. Gandalf seems much the same, except perhaps bossier and also he marks inside now that Buddie, a male dachshund, has moved in. I’ll keep you posted.