"My big dog often behaves as if he's dumb as a post, but my small dog is an Einstein." "Size doesn't matter. My big and small dogs are smart on some tasks and not so smart on others." "Molly, my tiny ...

Owners of large dogs know an uncomfortable truth long before it arrives. A Great Dane might give them eight good years, maybe a bit more, while a chihuahua could still be trotting along two decades ...

If you believe the statements from various websites on the Internet, there are huge differences in the behavior of dogs based upon their size. You will find statements like: "Big dogs are lovable ...