# Why did early homo species not regain body hair when they migrated to cold climates?

**URL:** <https://boards.straightdope.com/t/why-did-early-homo-species-not-regain-body-hair-when-they-migrated-to-cold-climates/993099>\
**Category:** Factual Questions\
**Created:** [November 14, 2023, 3:15am UTC](https://boards.straightdope.com/t/why-did-early-homo-species-not-regain-body-hair-when-they-migrated-to-cold-climates/993099 "2023-11-14T03:15:44Z")\
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**Author:** ![Northern\_Piper](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/northern_piper/32/5304_2.png) [@Northern\_Piper](https://boards.straightdope.com/u/Northern_Piper)\
**Post date:** [November 16, 2023, 2:01pm UTC](https://boards.straightdope.com/t/why-did-early-homo-species-not-regain-body-hair-when-they-migrated-to-cold-climates/993099/17 "2023-11-16T14:01:23Z")

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> [@Dorjan](#):
>
> The slightly softer-haired ancestor was slightly more attractive to the opposite sex, slightly more likely to have offspring and pass those softer haired genes along.

Or, as I put it in this old thread, “Why Blue Eyes?”

> [@Why blue eyes?](https://boards.straightdope.com/t/why-blue-eyes/718718/4):
>
> Getting laid? that’s the only reason the mutation has survived?

Getting laid? that’s the only reason the mutation has survived?

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