A team of roboticists at the Beijing Institute of Technology, working with a pair of colleagues from the Technical University of Munich, has created a new kind of rat robot—one that was designed to interact in social ways with real rats.

In their paper, the group describes how they used artificial intelligence to train their robot rat to behave like a real rat.

Science fiction books and movies have long promised humanoid robots capable of interacting with humans in ways that make the humans forget that the robots are not human. Such robots are shown as being able to do the kinds of work humans prefer to avoid and provide companionship.

In the real world, robots are not near having this level of ability. But scientists are working on it. In this new effort, the team in China set out to make a robot that could fool lab rats into thinking they were interacting with other real rats. And it appears they have succeeded.