The most lifelike robotic pet can see, hear, and feel your touch. Six computer chips process the input and produce lifelike reactions, such as crying if it’s left in the dark. Pleo moves naturally using 28 motors and joints—for example, arching its back when stroked. The dino also learns from experiences (such as staying away from your noisy canary) and displays emotions. You can even download behavioral-modification packs or use the free programming kit to customize its personality. $350; pleoworld.com