7 points
Flounders are born symmetrical; eye migration happens as they transition to the juvenile stage of growth.
2 points
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.
3 points
They are born (or hatch too lazy to look up) and their eyes move later once they get larger.
1 point
1 point
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.
2 points
1 point
