Mimicking animals is a proven strategy in robot design. Take, for example, Haibo Dong’s seminal studies on how fins propel fish by churning the water in a vortex. Mimicking animals is a proven strategy in robot design. Take, for example, Haibo Dong’s seminal studies on how fins propel fish by churning the water in a vortex. General Physics Phys.org – latest science and technology news stories