# Insect night vision and IR vision

**URL:** <https://discourse.cataclysmdda.org/t/insect-night-vision-and-ir-vision/8678>\
**Category:** The Garage\
**Created:** [January 19, 2015, 7:31pm UTC](https://discourse.cataclysmdda.org/t/insect-night-vision-and-ir-vision/8678 "2015-01-19T19:31:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Azetepii](https://avatars.discourse-cdn.com/v4/letter/a/d9b06d/32.png) [@Azetepii](https://discourse.cataclysmdda.org/u/Azetepii)\
**Post date:** [January 19, 2015, 7:31pm UTC](https://discourse.cataclysmdda.org/t/insect-night-vision-and-ir-vision/8678/1 "2015-01-19T19:31:39Z")

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The insect line only receives the benefit of high night vision, which makes it very improbable for them to acquire infrared vision (prereq full night vision), which is marked as a characteristic mutation.

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**Author:** ![KA101](https://avatars.discourse-cdn.com/v4/letter/k/278dde/32.png) [@KA101](https://discourse.cataclysmdda.org/u/KA101)\
**Post date:** [January 19, 2015, 11:31pm UTC](https://discourse.cataclysmdda.org/t/insect-night-vision-and-ir-vision/8678/2 "2015-01-19T23:31:55Z")

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> [@Azetepii](#):
>
> The insect line only receives the benefit of high night vision, which makes it very improbable for them to acquire infrared vision (prereq full night vision), which is marked as a characteristic mutation.

Mutations that are flagged in-category can pull prereqs. If it calls for IR and you’ve only got HNV, it should give FNV. Agreed that it’s not as certain as making FNV in-category, as it’s possible you could get canceled out for not-in-category before getting IR, but then part of the point of mutation is that results are NOT guaranteed.

Not a bug.