this post was submitted on 17 Dec 2025
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[–] samus12345@sh.itjust.works 84 points 3 weeks ago (5 children)

Doesn't apply to fish, as they can't move their eyes or heads. A wider field of vision is more advantageous in their case.

[–] Lux@lemmy.blahaj.zone 28 points 3 weeks ago (2 children)

i think it may be affected by the need to watch above and below as well

[–] Dagnet@lemmy.world 17 points 3 weeks ago

And the fact that sight is much less valuable and more limited underwater

[–] HeyThisIsntTheYMCA@lemmy.world 3 points 3 weeks ago

how does this affect jellyfish

[–] Kokolores@lemmy.world 8 points 3 weeks ago

Fish can move their eyes. I don't know if it applies to all of them. Here's a study about their eye movement with further source in the introduction. Link

[–] echodot@feddit.uk 4 points 3 weeks ago

Also for an enormous part of their evolutionary history sharks were prey animals.

[–] kazaika@lemmy.world 4 points 3 weeks ago

Also many fish or ocean animals tend to have other sensory organs as eyes arent that useful in darker depths

[–] Anivia@feddit.org 1 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

It pretty much only applies to mammals. Doesn't work with fish, birds or reptiles

Edit: typo

[–] samus12345@sh.itjust.works 3 points 3 weeks ago

Well, it does with some birds.