Dogs: our endearing, adorable, and devoted best friends. We go way back. Early signs of domestication date back 33,000 years, while unambiguous archaeological records of domesticated dogs are common as of 15,000 years ago. Undeniably, our interspecies partnership runs deep. Despite our long history together, we’re still learning to truly understand our remarkable best friends. Certainly, they’re a quick study of human behaviour. Wondering if your dog really understands what you’re saying? Turn to page 66. (Science says yes.) In this issue, we delve into the unique intelligence of dogs—and the many ways we can engage their incredible cognitive abilities. Dogs are smart and will find ways to keep themselves busy if you fail to! For tested and approved dog boredom busters to keep your dog mentally stimulated, check out page 22. (Studies show puzzle toys stave off canine cognitive dysfunction syndrome!). We also reveal brain boosters for dogs—turn to page 38 for games and foods to keep your dog’s mind sharp.