Previous articleNext article FreeA Probable Explanation of Polyembryony in the ArmadilloCharles R. StockardCharles R. Stockard Search for more articles by this author PDFPDF PLUS Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinkedInRedditEmail SectionsMoreDetailsFiguresReferencesCited by The American Naturalist Volume 55, Number 636Jan. - Feb., 1921 Published for The American Society of Naturalists Article DOIhttps://doi.org/10.1086/279791 Views: 229Total views on this site Citations: 8Citations are reported from Crossref PDF download Crossref reports the following articles citing this article:Tatsuya Hirasawa, Cantas Alev, Shigeru Kuratani Twins at Conspicuously Different Developmental Stages in a Turtle Egg, Zoological Science 36, no.11 (Feb 2019): 1.https://doi.org/10.2108/zs180107John C. Avise Evolutionary perspectives on clonal reproduction in vertebrate animals, Proceedings of the National Academy of Sciences 112, no.2929 (Jul 2015): 8867–8873.https://doi.org/10.1073/pnas.1501820112Bronson Price Bibliography on Prenatal and Natal Influences in Twins, Acta geneticae medicae et gemellologiae 27 (Aug 2014): 97–113.https://doi.org/10.1017/S0001566000009570Kurt Benirschke, Shirley G. Driscoll The Placenta of Multiple Pregnancy, (Jan 1967): 187–275.https://doi.org/10.1007/978-1-4612-9809-0_6F. Strauss, K. Benirschke, Shirley G. Driscoll The Placenta of Multiple Pregnancy, (Jan 1967): 187–275.https://doi.org/10.1007/978-3-662-25615-2_6Kurt Benirschke, Shirley G. Driscoll The Pathology of the Human Placenta, (Jan 1967): 97–571.https://doi.org/10.1007/978-3-662-38455-8_2G. W. D. Hamlett Observations on the embryology of the badger, The Anatomical Record 53, no.33 (Aug 1932): 283–303.https://doi.org/10.1002/ar.1090530303Oscar Riddle On the cause of twinning and abnormal development in birds, American Journal of Anatomy 32, no.22 (Sep 1923): 199–252.https://doi.org/10.1002/aja.1000320205