Operculum

Real World Example

Imagine trying to keep your smartphone safe from accidental drops and scratches by using a sturdy protective case. Just like how the case acts as a shield for your phone, preventing damage while still allowing you to use it effectively, the operculum is a hard flap that covers and protects a fish’s gills. The operculum functions like that case, safeguarding the delicate gills underneath from potential harm while still allowing the fish to breathe and interact with its environment seamlessly.