Have you ever wondered why dogs wag their tails?

Is the best you can come up with is “Because they’re happy”? Well then, of all the creatures with tails in the world why is it that the dog and only the dog seems to wag its tail when it is happy?

Take a deep breath and cancel all your plans for the next 1 min and 40 seconds as the answer is only one click away.

Let the trumpeters blare!