After hatching, "R. leporina" larvae are bilaterally symmetrical and resemble the larvae of other teleost species. Eye migration occurs during metamorphosis, where the left eye moves over to the right side of the body, creating an ocular side and blind side on the fish. This metamorphosis occurs as the larva moves from a pelagic habitat to an inshore, demersal one. Juveniles gather in the new inshore habitat and begin to lie on their sides, on the seafloor. The ocular right-side, now with both eyes present, deepens in colour to blend in with surrounding benthic environment, camouflaging the flounder and protecting them from predators. The flounder move into deeper waters as they grow, reaching adulthood after growing longer than 20 cm, at approximately two years of age.