| Contents | 8 |
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| List of Contributors | 13 |
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| The History and Future of Stiquito: A Hexapod Insectoid Robot | 17 |
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| 1.1 Introduction | 17 |
| 1.2 The Origins of Stiquito | 17 |
| 1.3 Engineering a Commercial Stiquito | 19 |
| 1.4 How the Stiquito Insect Walks | 20 |
| 1.5 Microprocessor Control and Stiquito Controlled | 23 |
| 1.6 The Extended Analog Computer as a Biologically Based Stiquito Controller | 25 |
| 1.7 The Sessile Stiquito Colony | 29 |
| 1.8 Educational Uses of Stiquito | 33 |
| 1.9 The Future of Stiquito | 34 |
| References | 35 |
| Learning Legged Locomotion | 37 |
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| 2.1 Introduction | 37 |
| 2.2 Learning from Delayed Reward | 38 |
| 2.3 Learning from Implicit Reward | 42 |
| 2.4 Conclusion | 47 |
| References | 48 |
| Salamandra Robotica: A Biologically Inspired Amphibious Robot that Swims and Walks | 50 |
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| 3.1 Introduction | 50 |
| 3.2 Robot's Design | 59 |
| 3.3 Hardware | 62 |
| 3.4 Experiments | 69 |
| 3.5 Future Work | 75 |
| 3.6 Conclusion | 76 |
| References | 78 |
| Multilocomotion Robot: Novel Concept, Mechanism, and Control of Bio- inspired Robot | 80 |
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| 4.1 Introduction | 80 |
| 4.2 Multilocomotion Robot | 81 |
| 4.3 Gorilla Robot | 86 |
| 4.4 Evaluation of the Gorilla Robot on Slopes as Quadruped Hardware | 90 |
| 4.5 PreviousWorks Using the Gorilla Robot | 97 |
| 4.6 Summary | 99 |
| References | 100 |
| Self-regulatory Hardware: Evolutionary Design for Mechanical Passivity on a Pseudo Passive Dynamic Walker | 102 |
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| 5.1 Introduction | 102 |
| 5.2 Background | 103 |
| 5.3 Evolutionary Design System of Legged Robots | 104 |
| 5.4 Evolutionary Design of Biped Robots | 107 |
| 5.5 Conclusion | 116 |
| References | 117 |
| Perception for Action in Roving Robots: A Dynamical System Approach | 118 |
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| 6.1 Introduction | 118 |
| 6.2 Control Architecture | 120 |
| 6.3 Hardware Devices | 128 |
| 6.4 Hardware Implementation | 132 |
| 6.5 Experiments | 137 |
| 6.6 Summary and Remarks | 144 |
| 6.7 Conclusion | 145 |
| References | 145 |
| Nature-inspired Single-electron Computers | 148 |
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| 7.1 Introduction | 148 |
| 7.2 A Single-electron Reaction-diffusion Device for Computation of a Voronoi Diagram | 149 |
| 7.3 Neuronal Synchrony Detection on Single-electron Neural Networks | 155 |
| 7.4 Stochastic Resonance Among Single-Electron Neurons on Schottky Wrap- Gate Devices | 165 |
| 7.5 Single-electron Circuits Performing Dendritic Pattern Formation with Nature- inspired Cellular Automata | 166 |
| 7.6 Summary and Future Works | 170 |
| References | 172 |
| Tribolon: Water-Based Self-Assembly Robots | 175 |
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| 8.1 Introduction | 175 |
| 8.2 Self-Assembly Robots | 176 |
| 8.3 Tribolon: Water-Based Self-Assembly Robots | 178 |
| 8.4 Speculations About Life | 195 |
| References | 196 |
| Artificial Symbiosis in EcoBots | 199 |
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| 9.1 Introduction | 199 |
| 9.2 Materials and Methods | 204 |
| 9.3 Results | 212 |
| 9.4 Discussion | 219 |
| 9.5 Conclusions | 223 |
| References | 224 |
| The Phi-Bot: A Robot Controlled by a Slime Mould | 226 |
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| 10.1 Introduction | 226 |
| 10.2 Physarum Polycephalum as Information Processor | 227 |
| 10.3 Cellular Robot Control | 228 |
| 10.4 Computation, Control, and Coordination in the F-Bot:Material for a Theory of Bounded Computability | 236 |
| 10.5 Conclusion | 243 |
| References | 244 |
| Reaction-Diffusion Controllers for Robots | 246 |
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| 11.1 Introduction | 246 |
| 11.2 BZ Medium | 249 |
| 11.3 Robot Taxis | 249 |
| 11.4 Open-Loop Parallel Actuators | 255 |
| 11.5 Closed-Loop Control of Robotic Hand | 264 |
| 11.6 Physarum Robots | 268 |
| 11.7 Conclusion | 273 |
| References | 276 |
| Index | 278 |