• BreadOven@lemmy.world
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    2 days ago

    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.

    • Drusas@fedia.io
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      14 hours ago

      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 of flounder of any age (or watch a video on it) and you’ll see.

    • Crashumbc@lemmy.world
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      2 days ago

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

      • BreadOven@lemmy.world
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        23 hours 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.