# What limits the size of arthropods?

**URL:** <https://boards.straightdope.com/t/what-limits-the-size-of-arthropods/510319>\
**Category:** Factual Questions\
**Created:** [September 16, 2009, 1:54pm UTC](https://boards.straightdope.com/t/what-limits-the-size-of-arthropods/510319 "2009-09-16T13:54:25Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![misterW](https://avatars.discourse-cdn.com/v4/letter/m/f1d935/32.png) [@misterW](https://boards.straightdope.com/u/misterW)\
**Post date:** [September 20, 2009, 7:23pm UTC](https://boards.straightdope.com/t/what-limits-the-size-of-arthropods/510319/21 "2009-09-20T19:23:33Z")

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So then, what is the limiting factor for arthropods that live in the water? Arthropods that take in oxygen through gills shouldn’t be affected by the cube-square law.

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