Photos: Raising CB2, the child robot

Researchers at Japan's Osaka University are working on a "Child Robot with Biomimetic Body," nicknamed CB2 (CB square), to teach lessons about child development.

CB2 is equipped with 51 air actuators, 5 motors, and 197 tactile sensors under its soft gray silicone skin. It measures about 4 feet, 3 inches tall and weighs 73 pounds.

Photo by AFP Photo/Yoshikazu Tsuno