Humans love to see dogs wagging their tails.
Dogs may wag their tails to impress human beings
Researchers have suggested that trait became common amongst canines during domestication as people take pleasure from the rhythm of the movement.
Dog owners often rely on tail wagging to understand how their pooch may be feeling and experts have proposed some theories to encourage further research into the subject.
Dr. Taylor Hersh, co-author of the article from the Max Planck Institute for Psycholinguistics in the Netherlands, said: "We may not be able to take a time machine back to the beginning of the dog-human relationship, but we can look at dog behaviour today in tandem with human behaviour to try and understand what that domestication process looked like.
"Tail wagging is a very apparent and interesting behaviour to start with."