The Hide-A-Squirrel Puzzle is at the top of our list because of its versatility. It can be used for a game of fetch or for a fun game of hide and seek. You can use this interactive dog toy indoors and outdoors, as it will still keep your pet mentally engaged while it's in use.
Dogs bark at people because in many cases, they are not accustomed to being around strangers other than their families. Dogs also have keen observation skills, meaning that they can read human body language well enough to sense suspicion or threat based on a person’s actions and bark in response.