The world's smartest and dumbest dog breeds have been revealed after a series of experiments carried out at the University of Helsinki in Finland.
When you're thinking of introducing a pet to your family life, there are so many things to consider - how well they'll get on with children, how easy they are to care for and how well they'll follow commands.
Each breed of dog is so different, but if you're keen to get one that will learn quickly and easily, it turns out there are some kinds that are more favourable than others.
