Talk:Twin

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Biology Mid‑importance

	Biology portal Twin is part of the WikiProject Biology, an effort to build a comprehensive and detailed guide to biology on Wikipedia. Leave messages on the WikiProject talk page.BiologyWikipedia:WikiProject BiologyTemplate:WikiProject BiologyBiology articles
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Molecular Biology: MCB Mid‑importance

	This article is within the scope of WikiProject Molecular Biology, a collaborative effort to improve the coverage of Molecular Biology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Molecular BiologyWikipedia:WikiProject Molecular BiologyTemplate:WikiProject Molecular BiologyMolecular Biology articles
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	This article is supported by the Molecular and Cell Biology task force (assessed as High-importance).

Family and relationships (defunct)

This article is within the scope of WikiProject Family and relationships, a project which is currently considered to be defunct.Family and relationshipsWikipedia:WikiProject Family and relationshipsTemplate:WikiProject Family and relationshipsFamily and relationships articles

Genealogy Mid‑importance

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Quaternary mention?[edit]

I not only didn't see any mention of non-communal "quaternary marriages" mentioned in this article, I couldn't find a single mention anywhere on wikipedia. Could quaternary marriages be mentioned or even have its own article? I learned about it earlier today in the letter section of Popular Science and this was basically the only worthwhile web reference I could find outside of discussion about group marriages: [1]

Citation 19 is a dead link[edit]

Wiki Education assignment: BIO 378 Developmental Biology[edit]

Polar body twins (hypothetical)[edit]

The Polar body article says that "Polar body twinning is a hypothesized form of twinning in meiosis, where one or more polar bodies do not disintegrate and are fertilized by sperm". This article has one source supposedly documenting one occurrence in humans. So what's the deal? One occurrence is pretty weak evidence. -- Valjean (talk) (PING me) 19:22, 20 December 2023 (UTC)[reply]

For the Citation Needed under 'Bi-paternal twins'[edit]

I have reason to believe that for the citation needed under 'Bi-paternal twins', this article https://pubmed.ncbi.nlm.nih.gov/1488855/ may be the missing citation. I'm unsure if that link is suitable, as it contains the abstract of the study.

ValiantEar564 (talk) 05:24, 5 March 2024 (UTC)[reply]

Types and Zygosity section[edit]

I removed table added in 2016 by Gatorgirl7563. It contained no information not already found in article. Tables should help the reader correlate related facts, however out of 77 cells, 66 were "X" (which was not defined). 2 columns were completely "X", so served no purpose. I am assuming that Gatorgirl7563 thought that it would be expanded and clarified by other editors over time, but at only 14% filled in, took up a lot of space without adding clarification to the article. There were previous discussions on talk page to remove or improve. If someone wanted to create a comprehensive table that correlates all aspects of the different types of twinning, I would support that, but it should add information to the article by showing how their attributes compare and contrast. • Bobsd • (talk) 17:13, 7 July 2024 (UTC)[reply]