this post was submitted on 30 Oct 2024
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Science Memes

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[–] austinfloyd@ttrpg.network 7 points 1 month ago (2 children)

Flounders are born symmetrical; eye migration happens as they transition to the juvenile stage of growth.

[–] BreadOven@lemmy.world 2 points 1 month ago (2 children)

Isn't it referring to during development? Like as they're forming, they are bilateral? I haven't taken developmental biology in many years, so I'm maybe wrong.

[–] Crashumbc@lemmy.world 3 points 1 month ago (1 children)

They are born (or hatch too lazy to look up) and their eyes move later once they get larger.

[–] BreadOven@lemmy.world 1 points 1 month ago

Yeah. I just wasn't sure at what point things are considered to be bilateral or otherwise.

I thought it may have been during the development process, but can't remember.

[–] Drusas@fedia.io 1 points 1 month ago (1 children)

They're only bilateral when they're very young. And even then, everyone is just focusing on the eyes. The body of the fish is also not exactly bilateral. Just fillet a flounder of any age (or watch a video on it) and you'll see.

[–] BreadOven@lemmy.world 2 points 1 month ago

Sorry, I'm talking about like when the fish first starts developing. Like how the initial cells orient themselves. I just have to look up what the definition actually is.

[–] Drusas@fedia.io 1 points 1 month ago

Oh, I know. It's very interesting. But when people imagine a flounder, they generally don't imagine a juvenile unless juvenile has been specified.