When you buy through our links, Business Insider may earn an affiliate commission. Learn more Mental stimulation that engages a dog's evolutionary instincts helps prevent boredom, depression, and ...

Overall, a well-made, difficult puzzle for a wicked-smart old man!" —ANWFlock Get it from Amazon for $6.80+ (available in nine styles). Promising review: "My dog is a fast eater. This toy keeps ...

from chew toys to puzzles and everything in between, to keep dogs from getting bored. We also spoke with a dog trainer and a veterinary behaviorist about toy safety, how dogs play, and what toys ...