# Why did T-Rex have such teeny arms?

**URL:** <https://boards.straightdope.com/t/why-did-t-rex-have-such-teeny-arms/622058>\
**Category:** Factual Questions\
**Created:** [May 16, 2012, 3:15am UTC](https://boards.straightdope.com/t/why-did-t-rex-have-such-teeny-arms/622058 "2012-05-16T03:15:46Z")\
**Posts on this page:** 3\
**Page:** 6

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**Author:** ![njtt](https://avatars.discourse-cdn.com/v4/letter/n/ecd19e/32.png) [@njtt](https://boards.straightdope.com/u/njtt)\
**Post date:** [February 11, 2013, 2:40pm UTC](https://boards.straightdope.com/t/why-did-t-rex-have-such-teeny-arms/622058/101 "2013-02-11T14:40:32Z")

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> [@msmith537](#):
>
> Did the T-Rex challenge it’s prey to a game of Scrabble or something?

Ah, so that is what the arms were for!

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**Author:** ![Sailboat](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sailboat/32/461_2.png) [@Sailboat](https://boards.straightdope.com/u/Sailboat)\
**Post date:** [February 11, 2013, 6:39pm UTC](https://boards.straightdope.com/t/why-did-t-rex-have-such-teeny-arms/622058/102 "2013-02-11T18:39:53Z")

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Myelin sheathing or not (are you claiming someone found intact T-Rex nerves? I’m dubious too), T. Rex was smart enough to completely dominate us mammals until the end of the world (well, the Mesozoic world, anyway).

Regarding the plural of T. Rex – no one is expected to survive encountering a single T. Rex, so the language for describing multiples has never evolved. 😛

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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:** [February 11, 2013, 7:01pm UTC](https://boards.straightdope.com/t/why-did-t-rex-have-such-teeny-arms/622058/103 "2013-02-11T19:01:24Z")

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> [@Sailboat](#):
>
> Myelin sheathing or not (are you claiming someone found intact T-Rex nerves?

Wouldn’t surprise me; scientists have found other T. Rex soft tissues, like blood vessels, collagen and hemoglobin.

[http://www.smithsonianmag.com/science-nature/dinosaur.html?c=y&story=fullstory](http://www.smithsonianmag.com/science-nature/dinosaur.html?c=y&story=fullstory)

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