A friend of mine has a beautiful Dalmatian. Friendly, energetic and adorable, she was a perfect pet… but she wasn’t the most intelligent dog on the planet. You see, she knew how to get through the animal’s door in the garden, but she had no idea how to get inside. It never occurred to her that the flap could swing back and forth. So she would sit outside and scream until my friend opened the door.
The repeated demonstrations of the double movement of the flap had no effect; he just didn’t calculate. The breeds of dogs on this list, however, probably don’t have this problem. They are widely regarded as one of the most intelligent dogs in the world. Take a look and see if you agree.