this post was submitted on 25 Sep 2024
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Science Memes

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submitted 2 months ago by [email protected] to c/[email protected]
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[–] SatansMaggotyCumFart 66 points 2 months ago (3 children)

They’re just sniffing that spice melange.

[–] [email protected] 42 points 2 months ago

They’re just sniffing that spice melange.

Rudolf Al-Gaib!

[–] [email protected] 11 points 2 months ago

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

[–] Agent641 10 points 2 months ago

This is how they gain magic flight at Christmas time

[–] officermike 31 points 2 months 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.

[–] [email protected] 51 points 2 months 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.

[–] officermike 18 points 2 months ago

Neat!

[–] [email protected] 0 points 2 months ago

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

[–] ceenote 3 points 2 months ago (3 children)

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

[–] [email protected] 11 points 2 months 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.

[–] [email protected] 7 points 2 months 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.

[–] [email protected] 5 points 2 months ago* (last edited 2 months ago)

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

[–] [email protected] 1 points 2 months 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.

[–] [email protected] 17 points 2 months 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 9 points 2 months ago

Did you just teal deer a reindeer article?

[–] lemonmelon 16 points 2 months ago (1 children)

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

[–] [email protected] 8 points 2 months ago

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

[–] [email protected] 8 points 2 months ago (2 children)

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

[–] ninja 13 points 2 months ago

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

[–] [email protected] 11 points 2 months ago

They wear sunglasses when it's too bright, duh

[–] [email protected] 7 points 2 months ago* (last edited 2 months ago)

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

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

[–] [email protected] 6 points 2 months ago* (last edited 2 months 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 1 points 2 months ago

Same, bro

[–] [email protected] 6 points 2 months ago* (last edited 2 months ago)

The shape of the iris changes drastically too

[–] Cadeillac 5 points 2 months ago

TIL my poop is gold

[–] [email protected] 3 points 2 months ago

Isn't that more like dark violet?

[–] [email protected] 2 points 2 months ago

Blue? That colour is violet in my eyes.

[–] affiliate 2 points 2 months ago

damn i wish my eyes did that

[–] ZILtoid1991 1 points 2 months ago

Fucking Mary Sues...