Adaptive dynamics for shape optimization inspired by the use-and-growth rule in a simple organism of slime mold

A kind of huge amoeboid organism named {¥it Physarum} plasmodium constructs a intricate network of veins for circulating nutrients and signals over the entire body. The network shape is drastically re-organized within an hour in response to external conditions. We may extract an algorithm for optimal design of functional network from the primitive organism.