# faternal twins

**URL:** <https://boards.straightdope.com/t/faternal-twins/573560>\
**Category:** Cecil's Columns/Staff Reports\
**Created:** [March 5, 2011, 4:03am UTC](https://boards.straightdope.com/t/faternal-twins/573560 "2011-03-05T04:03:04Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![caren67401](https://avatars.discourse-cdn.com/v4/letter/c/ee59a6/32.png) [@caren67401](https://boards.straightdope.com/u/caren67401)\
**Post date:** [March 5, 2011, 4:03am UTC](https://boards.straightdope.com/t/faternal-twins/573560/1 "2011-03-05T04:03:04Z")

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I had faternal twins, same father but their weights were so different, both girls and

living

5#1oz. and 2#13oz. explain this

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**Author:** ![Fear\_Itself](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/fear_itself/32/19637_2.png) [@Fear\_Itself](https://boards.straightdope.com/u/Fear_Itself)\
**Post date:** [March 5, 2011, 4:23am UTC](https://boards.straightdope.com/t/faternal-twins/573560/2 "2011-03-05T04:23:22Z")

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Two different ovum.

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**Author:** ![Musicat](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/musicat/32/20189_2.png) [@Musicat](https://boards.straightdope.com/u/Musicat)\
**Post date:** [March 5, 2011, 4:31am UTC](https://boards.straightdope.com/t/faternal-twins/573560/3 "2011-03-05T04:31:40Z")

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To quote someone who’s name I forget, welcome to the Straight Dope, caren67401 (love yer name), glad to have you with us. It’s a good idea to give a link to the column in question, so we are all on the same page, so to speak. No biggie, I’ll do it for you this time, but next time you’ll know:

> **[Is it possible for fraternal twins to have different fathers?](https://www.straightdope.com/21341655/is-it-possible-for-fraternal-twins-to-have-different-fathers)**

So I guess the 5#1oz one was the "fat"ernal one, eh?

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**Author:** ![Irishman](https://avatars.discourse-cdn.com/v4/letter/i/b487fb/32.png) [@Irishman](https://boards.straightdope.com/u/Irishman)\
**Post date:** [March 5, 2011, 8:05pm UTC](https://boards.straightdope.com/t/faternal-twins/573560/4 "2011-03-05T20:05:19Z")

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I would imagine, one of them got first dibs on the food supply, so the second was short-changed a bit. Though post-birth feeding would probably offset that.

Just my non-medical-expert guess.