Echolocation principle
Lessons from Harbor Porpoise
Read without noise.
Quiet Coastal Reading
Core lesson
Read the field clearly and you waste less force.
Biological basis
Harbor Porpoises are small coastal cetaceans that use echolocation clicks to navigate and hunt fish in cold coastal waters while remaining relatively shy and quiet.
Best use cases
Where this lesson tends to be most useful in practice.
DiscernmentQuiet focusNavigationLow-force actionSensing