(Photo by Mikelzubi) Imitating nature might benefit fields from material engineering to urban planning, a group called the Biomimicry Institute says. Can it also improve artificial limbs? Biomimicry is a design philosophy that guides an innovative merger of natural evolution and modern science. Professionals in the field start by investigating remarkable features of plants or animals. How can a kingfisher dive into water without making a splash? How do abalone create shells tougher than our…