Sweep principle
Lessons from Pied Avocet
Sweep the curve.
Upcurved-Bill Sifting

Core lesson
The right curve gathers what straight force would miss.
Biological basis
Pied Avocets use long upcurved bills to sweep side to side through shallow water and mud, catching small aquatic invertebrates.
Best use cases
Where this lesson tends to be most useful in practice.
TechniqueToolsSiftingSpecialized skillFinding small value