{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-13T13:41:44Z",
    "providers": [
      "Claude"
    ],
    "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
    "pass": 2,
    "wave": 4,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T10:00:00Z",
      "ingestedAt": "2026-10-06T07:33:37+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-06T19:51:57+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q25336",
    "registryId": "vr.tr.marsupial",
    "name": "marsupial",
    "version": "0.2.0-wave.4",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.LIV"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q25336/",
  "model": {
    "registry_id": "vr.tr.marsupial",
    "name": "marsupial",
    "purpose": "Let an agent explain marsupials and their reproduction, relay diversity, evolution and conservation from zoological sources, describe major groups, and distinguish marsupials from placental mammals and monotremes and the young joey from the adult.",
    "definition": "A mammal of the infraclass Marsupialia whose young are born at an early stage and complete development attached to a teat, often in a pouch, including kangaroos and their young called joeys, rat-kangaroos, koalas, wombats, possums, the small carnivorous marsupial mice or dunnarts, and the American opossums; marsupials number about 330 species, mostly in Australasia and the Americas, and diverged from placental mammals over 100 million years ago.",
    "what_it_is_for": "Not applicable; a mammal group.",
    "affordances": [
      "explain reproduction and groups",
      "relay evolution and conservation",
      "describe examples",
      "distinguish related mammals"
    ],
    "distinguishing_features": [
      "Pouch and teat development",
      "Australasian and American",
      "Diverse forms",
      "Ancient lineage"
    ],
    "appearance": "Mammals ranging from kangaroos to mouse-sized dunnarts, many with pouches.",
    "visual_identification": [
      "Mammal with early-born young developing on a teat",
      "Kangaroos and joeys, rat-kangaroos, marsupial mice, koalas, wombats, opossums",
      "Placentals gestate longer; monotremes lay eggs; a joey is any marsupial young"
    ],
    "physical_properties": [
      {
        "quantity": "species",
        "typical_range": "about 330",
        "unit": "count",
        "note": ""
      },
      {
        "quantity": "divergence from placentals",
        "typical_range": "over 100",
        "unit": "million years ago",
        "note": ""
      },
      {
        "quantity": "largest",
        "typical_range": "red kangaroo, up to 90 kg",
        "unit": "note",
        "note": ""
      },
      {
        "quantity": "smallest",
        "typical_range": "long-tailed planigale, about 4 g",
        "unit": "note",
        "note": ""
      }
    ],
    "families_and_kinds": [
      "kangaroos, wallabies and rat-kangaroos",
      "koalas and wombats",
      "possums and gliders",
      "dasyurids including marsupial mice, quolls and the Tasmanian devil",
      "bandicoots and bilbies",
      "American opossums and shrew opossums"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "mammal",
        "why": "in registry terms"
      },
      {
        "relation": "belongs to",
        "target": "Marsupialia",
        "why": "the infraclass"
      },
      {
        "relation": "is contrasted with",
        "target": "placental mammal",
        "why": "with longer gestation"
      },
      {
        "relation": "is exemplified by",
        "target": "kangaroo",
        "why": "the best known marsupial"
      }
    ],
    "identifiers": [
      {
        "scheme": "infraclass",
        "value_or_pattern": "Marsupialia",
        "note": ""
      }
    ],
    "standards_and_regulation": [
      "Australian wildlife protection laws",
      "IUCN Red List assessments",
      "CITES listings for some species"
    ],
    "failure_modes_and_hazards": [
      "Extinctions and declines from predators and habitat loss",
      "Confusing joey with a species",
      "Registry aliases mixing a young stage and groups"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Describe marsupial species, their biology and conservation status from scientific sources.",
        "Report a sick, injured or orphaned marsupial to a licensed wildlife carer.",
        "Monitor wild populations with methods approved by the responsible authority."
      ],
      "must_not": [
        "Capture, handle or keep a wild marsupial without a licence.",
        "Remove a joey from its mother's pouch except under a licensed carer's instruction.",
        "Feed wild marsupials or lure them near roads.",
        "Help trade protected marsupials or their parts."
      ],
      "requires_human": [
        "Any decision to euthanise or cull marsupials.",
        "Releasing a rescued marsupial back into the wild."
      ]
    },
    "ethics": {
      "considerations": [
        "Many marsupials have declined or gone extinct because of introduced predators and habitat loss.",
        "Animals in care feel stress and pain and their welfare comes first."
      ],
      "affected_parties": [
        "The animals themselves",
        "Wildlife carers",
        "Indigenous communities"
      ]
    },
    "owners": {
      "steward": "Nobody: wild and protected by law in most of their range; keepers answer for animals in captivity.",
      "master_systems": [
        "National species and conservation status databases"
      ]
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q25336: marsupial",
      "url": "https://www.wikidata.org/wiki/Q25336",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Marsupial",
      "url": "https://en.wikipedia.org/wiki/Marsupial",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "understand",
        "name": "Understand",
        "description": "What marsupials are.",
        "rationale": "Science.",
        "layers": [
          {
            "id": "definition",
            "name": "Definition",
            "description": "Definition and reproduction.",
            "findings": [
              {
                "id": "definition-finding",
                "name": "Definition",
                "description": "Definition.",
                "questions": [
                  {
                    "text": "What are marsupials, how does their reproduction work, and how do they differ from placentals and monotremes?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is the question about the group, a family, a species or conservation?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "groups",
            "name": "Groups",
            "description": "Groups.",
            "findings": [
              {
                "id": "groups-finding",
                "name": "Groups",
                "description": "Groups.",
                "questions": [
                  {
                    "text": "What are the major groups, from kangaroos and rat-kangaroos to marsupial mice and opossums, and what is a joey?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which entry fits the specific group?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "biology",
        "name": "Biology",
        "description": "Biology and evolution.",
        "rationale": "Science.",
        "layers": [
          {
            "id": "evolution",
            "name": "Evolution",
            "description": "Evolution.",
            "findings": [
              {
                "id": "evolution-finding",
                "name": "Evolution",
                "description": "Evolution.",
                "questions": [
                  {
                    "text": "How did marsupials evolve and spread between the Americas and Australia via Antarctica?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which references are standard?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "adaptations",
            "name": "Adaptations",
            "description": "Adaptations.",
            "findings": [
              {
                "id": "adaptations-finding",
                "name": "Adaptations",
                "description": "Adaptations.",
                "questions": [
                  {
                    "text": "What adaptations do marsupials show, from hopping to embryonic diapause?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which sources are cited?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "conservation",
        "name": "Conservation",
        "description": "Conservation.",
        "rationale": "Application.",
        "layers": [
          {
            "id": "threats",
            "name": "Threats",
            "description": "Threats.",
            "findings": [
              {
                "id": "threats-finding",
                "name": "Threats",
                "description": "Threats.",
                "questions": [
                  {
                    "text": "Why have so many marsupials declined, and which are threatened?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits Australian mammal extinctions?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "protection",
            "name": "Protection",
            "description": "Protection.",
            "findings": [
              {
                "id": "protection-finding",
                "name": "Protection",
                "description": "Protection.",
                "questions": [
                  {
                    "text": "How are marsupials protected and recovered?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits wildlife conservation in Australia?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "context",
        "name": "Context",
        "description": "Culture and study.",
        "rationale": "Context.",
        "layers": [
          {
            "id": "culture",
            "name": "Culture",
            "description": "Culture.",
            "findings": [
              {
                "id": "culture-finding",
                "name": "Culture",
                "description": "Culture.",
                "questions": [
                  {
                    "text": "How do marsupials figure in Aboriginal cultures and national symbols?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits kangaroo in culture?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "study",
            "name": "Study",
            "description": "Study.",
            "findings": [
              {
                "id": "study-finding",
                "name": "Study",
                "description": "Study.",
                "questions": [
                  {
                    "text": "How are marsupials studied, including as models in developmental biology?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits mammalogy?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should kangaroo, dasyurid and opossum be separate primary entries?",
    "How should zoological sources be linked?",
    "The registry entry has merged aliases naming a young stage and two groups; should they be split off?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}
