Does your dog understand when you say ‘fetch the ball’? A new study in Hungary says yes

BUDAPEST, Hungary (AP) — Many dog owners believe their pets understand and respond not only to commands such as “sit” and “stay,” but also to words referring to their favorite objects. “Bring me your ball” will often result in exactly that.
But science has had trouble determining whether dogs and other animals genuinely activate a mental image in their minds when they hear the name of an object…
Source : Chron