This book describes and verifies external shape laws in nature, not
only valid for trees, but also for bones, claws, thorns, etc. It is
shown how growing structures repair the disturbed optimum design
after wounding and damage has occured. Computer simulation of these
load-adaptive growths is used to find an ecological engineering
design, characterized by minimum weight and maximum strength. The
optimization procedure is already widely used in industry and many
technical examples are given.