We've long suspected that dogs have a nose for sensing our feelings.
Now scientists have gathered evidence that our four-legged friends really do have the ability to recognise human emotions.
A study has shown for the first time that the animals can pick up moods both in other dogs and their owners.
It makes man's best friend the only creature - apart from us - that can tune in to another species.
Lincoln University experts sat 17 pet dogs in front of a screen and flashed up two images of the face of another dog - one playful and one angry.