Maintenance principle
Lessons from Ringed Seal
Keep the hole open.
Ice-Hole Breathing

Core lesson
Life continues because small openings are kept from closing.
Biological basis
Ringed Seals maintain breathing holes in sea ice using strong claws, allowing them to surface and breathe while living beneath frozen Arctic waters.
Best use cases
Where this lesson tends to be most useful in practice.
MaintenanceSurvivalSmall openingsRoutine careCold resilience