HAVE you ever paid attention to how your pooch wags its tail?
Well, you had better take a closer look as a new study has found it will tell you exactly how they are feeling.
The study by the Centre for Mind-Brain Sciences at the University of Trento, Italy, showed that if a dog's tail wagged more to the left it meant they were scared.
If it wagged more to the right, it was happy.
But if you're like David Stiller (pictured), it can all be a bit confusing.
The Nambour man said staffie-ridgeback cross Mustang wagged his tail so much it was hard to tell which side he favoured.
"When I get home from work, his tail is going like a helicopter," he said.
"I can't see what side it's going to."
The study acknowledged most dogs moved their tail so rapidly their owners couldn't keep track but said other dogs could pick up the subtle difference.
Mr Stiller agreed that Mustang's wagging reflected his mood, depending on the situation.
"If he is scared, he puts his ears back and his tail between his legs," he said.
Update your news preferences and get the latest news delivered to your inbox.