Meet the Emotibots - a pair of machines currently on display at London's Science Museum.

Heart Robot has a beating heart, a breathing belly, and sensors that respond to movement, noise and touch. Cuddle him, and he seems to soak up the affection. His limbs become limp, his eyelids lower, his breathing relaxes, and his heart beat slows down.

But give him a violent shake, or shout in his face, and he gets upset. He flinches, his hands clench, his breathing and heart rate speed up, and his eyes widen.

Heart Robot, created by scientists at the University of the West of England in Bristol, was designed to explore what happens when machines interact emotionally with humans.