>>5161231why, my peenus weanus of course :)hahah! :Dit's my weeeeeenus peanus! :) hahahITT: animal species without eyes - my answer is, of course, my peanus weenus :Dhahaha!
Shit like this reminds me of that mystery flesh pit national park thing.
>>5161262It doesn't have an eye!? How do you pee!?!?
>>5161288love these lil niggas
>>5161288
>>5161288>>5162545There's actually a population of olms that live closer to the surface and therefore actually have both colored skin and more developed eyes.
very curious. are there ANY examples of eye sight re-evolving in known living species on earth? seems like one of those things once it's gone theres no going back evolution wise
>>5162793No.If you think about it, eyes are basically magic. They first need the ability to sense photons, and then the neurological ability to turn that sensation into a clear picture. And this requires successive generations of lenses and other refinements.It's not impossible to evolve in the first place, but it takes millions of years and the fact just about everything with eyes evolved them way back in the Cambrian tells you how much of an evolutionary advantage they were. Either you can see your predatory/prey, or you are fucked.
>>5162793it does seem like an evolutionary dead end. like... once the system that allowed them to flourish in the dark is gone they're fucked.
>>5162793>>5163008>>5164127Maybe a lot of the DNA for eyes still exists, but the switch that starts their development is shut off. Maybe they could rapidly evolve a new type/form of eye with their half-broken instructions.
>>5162793https://en.wikipedia.org/wiki/Dollo's_law_of_irreversibilityNo. Once you lose a complex feature it's basically impossible to re-evolve it.
>>5162793Depending on how you'd define it, either some scallops re-evolved eyes or both them and some echinoderms re-evolved eyes. The ancestor to bivalves is believed to have had at least simple eyes which were then lost, likewise the ancestor to deuterostomes was believed to have very primitive eyes and the echinoderms lost and then re-evolved eye-like arrangements with their tube feet(at least in some species, not all).
>>5165081That's freaky
>>5165085Yeah, but also really cool. The kinds of eyes that starfish have evolved are far more alien-looking too. Pic related is from this article( https://phys.org/news/2014-01-starfish-eyes-home.html ) and it shows how they can even close their eyes too.
>>5161231I'm surprised no one posted hooded tick-spiders yet. They're a group of arachnids without eyes but they also have a hood covering. https://en.wikipedia.org/wiki/RicinuleiPic related shows the hood lifted up, revealing its chelicerae(claw mouth parts).
A great philosopher once said, if you haven't got eyes, you shouldn't have wings.
