1. Department of Informatics, Centre for Robotics Research, King's College London, London, United Kingdom.
2. Morphological Computation and Learning Lab, Dyson School of Design Engineering, Imperial College London, London, United Kingdom.
3. Bristol Robotics Laboratory, Faculty of Engineering, University of Bristol, Bristol, United Kingdom.
4. Centre for Advanced Robotics @ Queen Mary (ARQ), Faculty of Science and Engineering, Queen Mary University of London, London, United Kingdom.
5. Industrial Research Institute for Automation and Measurements PIAP, Warsaw, Poland.
6. Department of Mechanical Engineering, University College London, London, United Kingdom.
7. Department of Electrical and Computer Engineering, Clemson University, Clemson, South Carolina.