New research suggests that changes in the way older dogs walk could be an early sign of dementia.

Add Yahoo as a preferred source to see more of our stories on Google. If an older dog's gait changes, there may be more to it than just normal signs of aging. Photo: Getty Images / Capuski Many dogs ...

Many dogs change their gait as they age. This is usually considered a normal part of getting older. However, researchers have now discovered a previously overlooked trait that could be linked to the ...