Some people think that Chihuahuas are intelligent because they have adapted to the human lifestyle better than any other breed of dog. Indeed, there are some cases where a Chihuahua has ferociously protected their owner from large animals like mountain lions. But watch out, because while it’s true that many breeds of dogs are capable of learning simple tricks, only certain special breeds are capable of problem-solving using abstractions! And by “certain,” I mean Labrador Retrievers, Border Collies, and German Shepherds. So if you’re getting a dog for protection or companionship – look elsewhere…