A new robot dog in Hungary is turning heads, wagging its digital tail, and teaching kids how to care for animals. The Unitree Go2 robot dog is more than just a tech toy. It is a full-on lesson in ...

Until recently, you might have added "cardboard robot" to the list. But a project called Kinetic Creatures on the crowd-funding site Kickstarter shows that it's a perfect combination.

By using positive reinforcement, an approach familiar to anyone who's used treats to change a dog's behavior, the team dramatically improved the robot's skills and did it quickly enough to make ...