A dog’s ears are one of the most inaccessible places on his body. You may notice if you have two or more dogs that they’ll take it in turns to clean each other’s ears. Nature has taught dogs that cooperation on this issue is a good thing, as infections that start in the ear and impede hearing and balance can lead to more severe problems, so the wild pack of dogs will find itself diminished and weakened if ears are left to collect dirt and grime.
Source: DogMagazine.net – the K9 Magazine blog
Ear Care – How to Ensure Your Dog’s Ears are Clean and Healthy
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