Efficiency principle
Lessons from Crab
Preserve energy for decisive moves.

Core lesson
You do not always need elegant forward speed. In messy environments, armor, leverage, and the ability to move through narrow edges can be the real advantage.
Biological basis
Hard carapace, jointed sideways gait, and claw-based feeding and signaling make crabs versatile hardware for cluttered tidal and shoreline environments. Crabs turn reef cracks, mudflats, mangroves, and rocky edges into active feeding and recycling zones. They process waste, prey on smaller animals, and convert hard surfaces into inhabited economic space.
Best use cases
Where this lesson tends to be most useful in practice.
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Related lessons
Other animals connected to the Efficiency principle.
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