Don't lie to Rover!

Does your dog hate your best friend?

Does she refuse to accept a treat from a relative or colleague? If you always thought it's because they smell bad, it isn't.

A new study has revealed that your dog can tell if a person is not trustworthy.

The Japanese researchers took 30 dogs through a food test.

Each dog was sent to a food bowl filled with food. The food was removed in the second round.

In round three, the dog didn't approach the bowl - even though it was filled with food. In each step, the same researcher was used to instruct the dog.

The experts concluded that dogs have more sophisticated social intelligence than was previously thought.