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