Spine Radius principle
Lessons from Long-spined sea urchin
Guard all around.
Protect your space in every direction.
Core lesson
Boundaries can be quiet, constant, and built into the body.
Biological basis
Long-spined Sea Urchins use long spines for defense and shelter while grazing and moving slowly over reef surfaces.
Best use cases
Where this lesson tends to be most useful in practice.
boundariesdefenseslow protection