There are a few special words that will perk the ears of many a dog – “hungry”, “park” and of course, “T-R-E-A-T”. But a choice group of gifted canines appear to have a remarkable capacity for learning human vocabulary, to the point that they acquire language by eavesdropping the way young toddlers do. That’s according to a new study published on Thursday in the journal Science, which shows that some “gifted word learner” dogs already known to be capable of learning toy names through training...