The Emergence Machine

Crab Animal

physical · Biology · Level 9 · E6

E6Organisms

Each concept here is mapped to its prerequisites — the ideas you'd need first to understand it — all the way down to four foundations: Space, Time, Energy, Pattern. Click any prerequisite to drill down, or scroll for the chain graph.

Trace. Question. Emerge.

Emergence definition

Crabs have protective shells because they live in water, which requires matter, and their shells emerge from the combination of form and structure, similar to how bone is a structural covering in the body.

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Wiktionary senses

External reference — all senses of the word “crab” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.

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Source: Wiktionary — “crab”. Content available under CC BY-SA 4.0.

Historical origin

Origin language
English

Prerequisite chain

Possible path of this concept down to the fundamental substrate.

thisfoundationsL9L8L7L6L3L2L1L0Crab AnimalShell StructureBoneBodyTissueCellWater… intermediate l…FormLifeStructureSubstanceChangeMatterEnergyPatternSpaceTimeE1 concrete → E14 abstract

Neighborhood

Direct prerequisites above, concepts that depend on this one below.

used byprerequisitesLobster AnimalL10Crab AnimalL9WaterL3Shell StructureL8E1 concrete → E14 abstract

In other languages

  • crab English primary

Prerequisites

What you need to understand first.

  • Water L3 (requires) polysemous
    Crabs live in water
  • Shell Structure L8 (requires)
    Crabs have protective shells

Used by