Which fish comes from the sea onto land before Shabbat and returns to the sea after Shabbat?

This source-based Torah study examines: Which fish comes from the sea onto land before Shabbat and returns to the sea after Shabbat? It follows the canonical Hebrew discussion and the classical sources cited there, preserving the distinctions and review status of the original. This localized layer is for study and discovery only; it is not practical halakhic, medical, legal, scientific, safety or pastoral advice.