{
  "name": "Volvox sizes: spheres, embryos, cells and two photo measurements",
  "desc": "Volvox sizes: the range of largest spheroid lengths, embryo, cell and eyespot sizes as stated by their sources, sphere sizes computed for this page from a printed 0.1 mm bar, and the smallest known parasitoid insect for scale",
  "lic": "CC BY 4.0",
  "lic_url": "https://creativecommons.org/licenses/by/4.0/",
  "by": "Ants, Cells & Atoms",
  "url": "https://antscellsandatoms.com/microscopic-life/volvox/",
  "from": [
    "values typed from the sources in data_credit",
    "pixel lengths read from media/volvox-asexual-scale.jpg (bar 140 px; spheres 407-412 x 392 px and 551-568 x 526-527 px) and media/volvox-hero-colonies.jpg (bars 41 px; cells 16.1-22.1 px)"
  ],
  "how": "Compiled by Ants, Cells & Atoms from the data listed",
  "data_by": [
    "Höhn S, Hallmann A 2011, BMC Biology 9:89, CC BY 2.0, https://doi.org/10.1186/1741-7007-9-89, retrieved 2026-10-25",
    "Nozaki H et al. 2015, PLOS ONE 10(11):e0142632, CC BY 4.0, https://doi.org/10.1371/journal.pone.0142632, retrieved 2026-10-25",
    "Nozaki H et al. 2016, PLOS ONE 11(11):e0167148, CC BY 4.0, https://doi.org/10.1371/journal.pone.0167148, retrieved 2026-10-25",
    "Nozaki H et al. 2018, Botanical Studies 59:10, CC BY 4.0, https://doi.org/10.1186/s40529-018-0227-9, retrieved 2026-10-25",
    "Nozaki H et al. 2024, PLOS ONE 19(9):e0310549, CC BY 4.0, https://doi.org/10.1371/journal.pone.0310549, retrieved 2026-10-25",
    "Ueki N, Matsunaga S, Inouye I, Hallmann A 2010, BMC Biology 8:103, CC BY 2.0, https://doi.org/10.1186/1741-7007-8-103, retrieved 2026-10-25",
    "Polilov AA 2015, ZooKeys 526:61-64, CC BY 4.0, https://doi.org/10.3897/zookeys.526.6531, retrieved 2026-10-25",
    "Photo measurement: Jon Houseman and Matthew Ford, Volvox asexual 2, CC BY-SA 4.0, https://commons.wikimedia.org/wiki/File:Volvox_asexual_2.jpg; sizes computed 2026-10-25",
    "Photo measurement: sgharvey, Volvox 1, CC BY 2.0, https://commons.wikimedia.org/wiki/File:Volvox_1.jpg; lengths computed 2026-10-25"
  ]
}