Why does my dog dig in the furniture?
Most dogs were originally bred to service a function.  Some dogs were bred to chase small animals, for hunting rabbits or fox.  Many of these breeds were also intended to dig for their kills, so your dog may burrow because it's born to do that.  Said differently, some terrier breeds were meant to hunt rats, i.e. the rat terrier.  These dogs will dig even if there is nothing to dig for simply because it's what they were bred to do.  Other dogs dig to create nesting areas, to warm up their area before they lay down, or to check for bugs.
Por que o meu cão cavou nos móveis?
A maioria dos cães foram originalmente criados para servir uma função. Alguns cães foram criados para perseguir animais pequenos, para caçar coelhos ou raposas. Muitas dessas raças também foram projetadas para cavar para suas mortes, então seu cão pode cavar porque nasceu para fazer isso.