How do clams survive high tide and low tide?

Clams survive high tide by burrowing into the sand or mud, which helps them remain submerged and protected from predators and desiccation. During low tide, they can close their shells tightly to retain moisture and minimize exposure to air. This behavior allows them to conserve water and maintain their physiological functions until the tide rises again. Additionally, some species have adaptations that enable them to tolerate brief periods of exposure.