Why do dogs wag their tails?

Think dogs that are wagging their tail are always blissfully happy?

It’s a common perception, but it turns out that it’s likely wrong. Most behavioural experts believe that tail-wagging is merely a sign of strong emotion. In lots of dogs, it usually equates to happiness, but it can also mean the dog is concerned or cautious about a new situation. Some dogs wag their tails when they’re feeling threatened.

For this reason, you should always approach an unfamiliar dog with caution, even when it’s wagging its tail. Kids should be taught this as well and should be told never to approach any dog with outstretched fingers that can be easily bitten. They should also be instructed to ask permission from the owner before approaching any dog.

source: https://www.petcoach.co/