Since the late 1980s, there has been a major shift in the approach of intelligent robots towards what are termed ‘biological inspiration’, or bio-inspired, robots. Bio-inspired means two things here: a revision in how we approach robot design and an examination of how systems are found in nature. Robots should be seen as models of living systems. A new discipline has sprung up which is known as Artificial Life, or Alife. ‘Biological robotics’ looks at autonomous robots, behaviour-based robotics, slugrobots, the idea of an EcoBot (a robot with an artificial digestive system), the scatchbot (a robot with whiskers), and robots that learn.