Here Are 29 Perplexing Dog Habits Explained

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When His Back Hair Stands

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Piloerection is explained as ‘a reaction of the sympathetic nervous system that causes certain muscles to contract and hair follicles to protrude outwards from the skin.’ With humans, the way this shows itself is usually with goosebumps, but with dogs, it’s getting hackles or the raising of the hair on their backs. But more than knowing what it is, a big question is why does it happen to your dog? The usual reason is his reaction to anxiety and feeling uneasy in a certain environment or because of something that he’s reacting to. The next time you notice this, make sure to try to keep your dog relaxed and try to figure out what’s stressing him in the first place.