Britain's smiliest dog is so happy she grins at everyone she meets.
Whenever she receives friendly attention or cuddles, 10-year-old Belle seems to beam with happiness and lets out a big smile.
It appears that the cute Staffordshire Bull Terrier cross can't help but smile when she meets people and her carers believe that she may have taught herself to smile because it gets such a good response from humans.
Belle may have learnt to smile, when adoring humans smiled back, laughed and gave her friendly attention - so she continues to grin whenever she meets someone.
Cute pictures of Belle show just how happy she gets when given cuddles as she lets out a beaming smile while being stroked by carers.
She lives at the Dogs Trust centre in Harefield, a village in west London, and carers say she is one-of-a-kind.