Dogs are the people´s best friends, as they expressed with their tails. First a dog’s tail is just one of their methods of communication, and when they wag their tails indicate specific emotions, second dogs don’t wag their tails when they are alone, always when they see their owners wag their tails to say hello and to indicate that they are healthy and happy. Third tail wagging works well for dogs. Since canine vision is attuned more to movement than to colors or details, dogs readily discern different tail wags. To finalize and as important data, people communicate a lot with their best friends, for this reason dog´s tails expressed happiness if you are the best friend por their.
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