We all know human mothers who dote excessively on their kids, depriving them of the opportunity to learn how to handle life’s challenges on their own. New research suggests that canine moms who are overly attentive may be causing the same harm to their puppies.
In a study of 98 puppies at a New Jersey facility that breeds, raises and trains guide dogs for the visually impaired, researchers found that high levels of maternal care were associated with failure. About 30 percent of puppies don’t make the cut, and too much mothering may be part of the problem. Puppies whose mothers were excessively attentive were more likely to fail out of the guide dog program.
Attentiveness involved many behaviors, such as the amount of time spent in contact with the puppies, time spent licking the puppies and time in the box with the puppies. Additionally, the mothers’ postures when nursing their puppies may have influenced their development. Some mothers lie on their sides while nursing, which gives puppies easy access to milk. Other moms remain standing, a posture that requires puppies to work harder for the milk. Puppies whose mothers stood during nursing were more likely to succeed as guide dogs.
The scientists who conducted the study assert that facing and overcoming minor obstacles—such as difficulties acquiring milk from Mom—may be important for developing independence and key life skills. The opportunity to succeed despite facing challenges may allow puppies to develop confidence, self-reliance, frustration tolerance or other qualities that made success as a guide dog more likely.
Interestingly, this study’s conclusion that excessive mothering is problematic contradicts the results found in a previous study of the effects of maternal care on working dogs. In that study, higher levels of maternal care were associated with success in a program for raising working dogs for the Swedish Armed Forces. It may be that different mothering styles are best for raising working dogs of different types—guide dogs versus military dogs. Another possibility is that we’ve got a Goldilocks situation in which some dogs mother too much and some dogs mother too little, but others provide the amount that is just right.
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What does seem clear from both studies is that there are strong effects of early experiences on adult behavior in dogs. Impulse control, aggression, neophobia, motivation and anxiety and a host of emotional and cognitive traits are influenced by the type and amount of maternal care they receive in the first few weeks of life. Any program would likely benefit by considering this factor when deciding which individuals to breed.
There is much to be gained by understanding which factors are predictive of a successful working dog. As the authors of this recent research wrote, one element involves the “enduring benefits of maternal care—in moderation”.