Why your dogs need it: Swiss scientists reported in the “Proceedings of the Royal Society B” that all animals that have been tamed and lived with humans for a long time have had their brains shrink dramatically compared to their ancestors or their wild counterparts. Raised by human, domestic animals who will not worry about food and drink will "become stupid". Scientists believe that animals and pets no longer need to dodge predators, defend territory or forage for food, so they don't need to use their brains to survive and be independent. Improve the dogs’ intelligence by making it more difficult to get food. On top of the toy is a transparent storage bin. When you open the cover, you can add kibbles or treats into the toy. As long as the pet pushes the toy to wobble back and forth, treats will leak out, which makes the toy more interesting. You can also reward the dog with food by playing with the toy to boost his brain development and improve his intelligence. This wobbling doggy food dispenser car is moderate difficulty of level-1, suitable for the dog that has just developed intelligence to use. Through the process of using the toy to give the dog reasonable intelligence training, which can improve his IQ more effectively. You can also adjust the difficulty of obtaining food by adding different sizes of treats, kibbles and jerky in the toy, which depends on the actual condition of your dog. Your dogs approved it! This treat dispensing dog toy uses a lovely robot shape, very attractive; it’s swinging and sliding with no power, and it can dispense kibbles and educate dogs. Small and medium-sized dogs will quickly fall in love with this toy. If you have a cute little puppy, you shouldn’t miss it.