While the aging brain of a dog will result in changes in his behavior, a dog can also experience canine cognitive dysfunction syndrome (also called canine dementia); in fact, available data points to 25 % of dogs over the age of 10 displaying at least one of the main symptoms linked to brain aging. (wagwalking.com)
And because these voice areas are found in similar locations in the brains of both dogs and humans, the scientists suggest that they likely evolved at least 100 million years ago, when humans and dogs last shared a common ancestor, an insectivore. (sciencemag.org)
At the structural level, the brains of dogs are similar to those of humans. (discovermagazine.com)