# Predation > **Machine-Evolution Nexus:** [[articles/Digital Darwinism and the Invisible World of Machine Evolution|Digital Darwinism and the Invisible World of Machine Evolution]] places this concept within the history and governance of substrate-independent evolution. **Domain:** Ecology / Evolution **Doc Type:** Canonical Wiki Node **Maturity:** Developed ## Definition Predation is an ecological interaction in which one organism captures and consumes another or its resources. ## Machine-Evolution Context Barricelli’s numerical populations displayed predation-like relations, supporting the article’s claim that recognizable ecological dynamics can arise in nonbiological media. ## Continuity and Evidence Boundary Similarity of interaction does not erase differences between biological suffering and computational resource loss. Moral interpretation requires evidence beyond functional ecology. ## Relationships [[wiki/Nils Aall Barricelli|Nils Aall Barricelli]], [[wiki/Artificial Ecology|Artificial Ecology]], [[wiki/Competition|Competition]], [[wiki/Parasitism|Parasitism]] ## Sources / Provenance - Institute for Advanced Study, “Nils A. Barricelli.”