Until the 1980s, most pet experts believed that the best way to train your dog was by showing him that you were 'boss' right from the start, and then maintaining that power balance throughout your pet's life. This training method is known as theory of dominance, and uses punishment and negative experiences (such as inflicting pain or withdrawing privileges) to discourage any unwanted behaviour.
However, most behaviourists and trainers now know that this concept is flawed: dominance theory was based on faulty research that came from observing wolves in captivity. 'This led to the belief that an alpha male in a pack leads through aggression,' explains Inga. 'However, the wolves observed in captivity were often unrelated and forced to live together in small, man-made enclosures. We now understand that wolves act in a very different way when living in natural family packs in the wild. But, most importantly, we know that although dogs evolved from wolves, domestic dogs behave in a different manner. They don't form the same sort of family packs as wolves do, and they've adapted to live in cooperation with strangers – be it humans or other dogs.'