Why Do Dogs Wag Their Tails When Happy. For puppies if they wag their tail high and side to side that means they are happy. Dogs use their tails for all sorts of essential things that go far beyond merely conveying happinessWhy do dogs wag and chase their tails though. The tail wagging speed plays. This means its a lot for their brains to process.
A tucked tail or a tail that is a lot lower but wagging slightly usually means the dog is worried. Dogs do use their tails to communicate though a wagging tail. The full body wag where the whole behind of the dog is moving and the tail is sweeping from side to side usually means what most of us think it does. In contrast an unhappy dog will be stiffer in its posture. If youre getting the helicopter tail your dog is really pleased to see you. Thats why they freeze their tails.
Dogs use their tails to send signals to other dogs and humans.
Although tail movement and position vary slightly between dog breeds many general movements are the same. Dogs use their tails for all sorts of essential things that go far beyond merely conveying happinessWhy do dogs wag and chase their tails though. Dogs wag their tails when theyre happy. The rate at which a tail moves adds further meaning to canine communication. Sometimes a wagging tail doesnt mean that a dog is feeling friendly it could signal just the opposite. Not by a long shot.