1. Teddy bear face designed to be reassuring
2. Hydraulic upper body carries up to 227kgs (500lbs)
3. When kneeling tracked "legs" travel over rubble. Switches to wheels on smooth surfaces
4. Dynamic Balance Behaviour (DBB) technology allows the robot to stand and carry loads upright on its ankles, knees or hips for nearly an hour

BBC NEWS | Health | Bear robot rescues wounded troops