Giant Clam

About

How giant clam lives

Giant clams are reef mollusks that host photosynthetic algae in colorful mantle tissue. A giant clam can live for many decades while anchored on a reef. Reef animals thrive in complex habitats where color, shelter, and quick reactions matter.

Conservation

Status and habitat pressure

Vulnerable species face mounting risks and can decline quickly if habitats continue to shrink. Protecting giant clam also depends on keeping coral reef, ocean habitats healthy and connected.

Vulnerable species can decline quickly when habitat loss, climate pressure, or human conflict intensifies.

Quick Facts

Things to notice

• A giant clam can live for many decades while anchored on a reef.
• Fish body shapes often reflect how they move, feed, and avoid predators in different waters.
• Reef animals thrive in complex habitats where color, shelter, and quick reactions matter.
• Vulnerable species face mounting risks and can decline quickly if habitats continue to shrink.