"Peto's paradox" meaning in English

{
  "etymology_text": "After Richard Peto.",
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      "expansion": "Peto's paradox",
      "name": "en-proper noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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          "kind": "other",
          "name": "English entries with incorrect language header",
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          "source": "w"
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      "examples": [
        {
          "ref": "2013, Jonathan Silvertown, The Long and the Short of It: The Science of Life Span and Aging:",
          "text": "Peto's paradox has the clear implication that somehow longer-lived species are better protected from cancer than shorter-lived ones and, likewise, bigger species are better protected than smaller ones.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The observation that at the species level, the incidence of cancer does not appear to correlate with the number of cells in an organism."
      ],
      "id": "en-Peto's_paradox-en-name-C7i8~9iT",
      "links": [
        [
          "species",
          "species"
        ],
        [
          "incidence",
          "incidence"
        ],
        [
          "cancer",
          "cancer"
        ],
        [
          "correlate",
          "correlate"
        ],
        [
          "cell",
          "cell"
        ],
        [
          "organism",
          "organism"
        ]
      ],
      "wikipedia": [
        "Richard Peto"
      ]
    }
  ],
  "word": "Peto's paradox"
}

{
  "etymology_text": "After Richard Peto.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Peto's paradox",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2013, Jonathan Silvertown, The Long and the Short of It: The Science of Life Span and Aging:",
          "text": "Peto's paradox has the clear implication that somehow longer-lived species are better protected from cancer than shorter-lived ones and, likewise, bigger species are better protected than smaller ones.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The observation that at the species level, the incidence of cancer does not appear to correlate with the number of cells in an organism."
      ],
      "links": [
        [
          "species",
          "species"
        ],
        [
          "incidence",
          "incidence"
        ],
        [
          "cancer",
          "cancer"
        ],
        [
          "correlate",
          "correlate"
        ],
        [
          "cell",
          "cell"
        ],
        [
          "organism",
          "organism"
        ]
      ],
      "wikipedia": [
        "Richard Peto"
      ]
    }
  ],
  "word": "Peto's paradox"
}