Dog and human brain link revealed
21 February 2014 Last updated at 16:56 GMT
Dog owners often say their pets can understand them. A new study suggests they could be right.
By placing dogs in a special machine called an MRI scanner, scientists found that a dog's brain reacts to voices in the same way as the human brain.
Emotional human sounds like crying or laughter also made the pooches react, maybe explaining why dogs pay attention to human emotions.
Eleven pet dogs took part in the study and training them took quite a while!