dog behavior

theripist where I can find a dog behavior?

I have a Newfoundland that is wonderful in every way. He is great with the family, women come and go in the house, especially with dogs. However, men who come, it becomes very aggressive. And children who are at or play, the charges, and even cut two children three years. I have to control this. Any suggestions.

I am a specialist in canine behavior. If you want to email the name of your city, you can direct the renowned coaches / behaviorist in your area.

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