{
  "annotation_id": "a7e60bec-912c-4f61-a160-f94b5333dd85",
  "date_created": "2026-03-02T18:01:35.092000Z",
  "date_modified": "2026-03-02T18:01:35.092000Z",
  "file_hash": "9540bdc254df717421b6353e1ad6b03aebf54f7123e59dccc44d9be38fe15992",
  "private": false,
  "record": {
    "abstract": "Sexual reproduction in Nature requires two sexes, which raises the question\nwhy the reproductive scheme did not evolve to have three or more sexes. Here we\nconstruct a constrained optimization model based on the communication theory to\nanalyze trade-offs among reproductive schemes with arbitrary number of sexes.\nMore sexes on one hand lead to higher reproductive diversity, but on the other\nhand incur greater cost in time and energy for reproductive success. Our model\nshows that the two-sexes reproduction scheme maximizes the recombination\nentropy-to-cost ratio, and hence is the optimal solution to the problem.",
    "arxiv_id": "q-bio/0703021",
    "authors": [
      "Bo Deng"
    ],
    "categories": [
      "q-bio.PE"
    ],
    "title": "The Origin of 2 Sexes Through Optimization of Recombination Entropy   Against Time and Energy",
    "url": "https://arxiv.org/abs/q-bio/0703021"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8ed581a3-3963-4727-8967-068cdbc532cc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}