this post was submitted on 25 Sep 2024
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Science Memes

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[–] SatansMaggotyCumFart@lemmy.world 65 points 3 weeks ago (3 children)

They’re just sniffing that spice melange.

[–] Boxscape@lemmy.sdf.org 41 points 3 weeks ago

They’re just sniffing that spice melange.

Rudolf Al-Gaib!

[–] rockerface@lemm.ee 11 points 3 weeks ago

Source of Nokotan's powers revealed. The spice must deer

[–] Agent641@lemmy.world 10 points 3 weeks ago

This is how they gain magic flight at Christmas time

[–] officermike@lemmy.world 31 points 3 weeks ago (5 children)

This doesn't make sense to me. The iris doesn't collect light for vision. The pupil expands or contracts to vary the amount of light that reaches the retina. Iris color should have nothing to do with it.

[–] Donut@leminal.space 51 points 3 weeks ago (2 children)

From the first source on the linked study, they describe it as the following:

(...) This functions as a mirror providing the second opportunity for photon capture by reflecting light back through the retina, enhancing visual sensitivity.

But the iris is a mask, it blocks off axis light

[–] ceenote@lemmy.world 3 points 3 weeks ago (3 children)

Plus, no summer day is brighter than a clear winter day with snow on the ground.

[–] Catoblepas@lemmy.blahaj.zone 11 points 3 weeks ago

It is if you live in a part of the world that is dark for months at a time during the winter, like reindeer do.

[–] Suru@mander.xyz 7 points 3 weeks ago

Most reindeer live North of the Arctic Circle, where the sun does not rise above the horizon in winter months. I suspect most summer days are brighter than the few hours of twilight the reideer get in December.

[–] TachyonTele@lemm.ee 5 points 3 weeks ago* (last edited 3 weeks ago)

The pupil dilates, combined with more uv light seasonally, changes the structure of the iris and thus it's color. (It reflects differently)

[–] rhombus@sh.itjust.works 1 points 3 weeks ago

A lighter iris color correlates with higher light sensitivity and better low light vision. The higher density of pigment in a darker iris blocks light better.

[–] turnipjs@lemmy.ml 20 points 3 weeks ago (1 children)

https://www.biorxiv.org/content/10.1101/2024.01.17.576074v1.full.pdf

TL;DR: Eyes with lighter color irises have better low light performance in at least some circumstances.

[–] GeorgimusPrime@lemmy.world 9 points 3 weeks ago

Did you just teal deer a reindeer article?

[–] lemonmelon@lemmy.world 16 points 3 weeks ago (1 children)

But did you know
That when it snows
My eyes become violet
And light that you shine
Can be seen?

[–] MrShankles@reddthat.com 8 points 3 weeks ago

BAAABBAAAYYY! I compare you to a kiss from a deer on the rein

[–] chicken@lemmy.dbzer0.com 10 points 3 weeks ago (2 children)

Wouldn't this lead to snowblindness? It gets way brighter in the winter

[–] lowleveldata@programming.dev 14 points 3 weeks ago

They wear sunglasses when it's too bright, duh

[–] ninja@lemmy.world 13 points 3 weeks ago

In the polar regions there are extended periods of wintertime where the sun does not rise.

[–] Boxscape@lemmy.sdf.org 8 points 3 weeks ago* (last edited 3 weeks ago)

Reindeer's are golden in summer but turn deep blue in winter

Gold and blue?
My dude, those eyes are black and white. 😏

[–] Akasazh@feddit.nl 6 points 3 weeks ago* (last edited 3 weeks ago)

The shape of the iris changes drastically too

[–] hsdkfr734r@feddit.nl 6 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

Looks like brown and purple to me.

Edit: TIL. It reminds me of the Moor frog, which turns blue... ish when horny.

[–] Agent641@lemmy.world 1 points 3 weeks ago
[–] Cadeillac@lemmy.world 5 points 3 weeks ago

TIL my poop is gold

[–] AsudoxDev@programming.dev 3 points 3 weeks ago

Isn't that more like dark violet?

[–] affiliate@lemmy.world 2 points 3 weeks ago

damn i wish my eyes did that

[–] Kallioapina@lemmy.dbzer0.com 2 points 3 weeks ago

Blue? That colour is violet in my eyes.

[–] ZILtoid1991@lemmy.world 1 points 3 weeks ago

Fucking Mary Sues...