Range: South Pacific and Indian Oceans
Habitat: shallow coral reefs
The giant clam is the largest living bivalve mollusc. They can have an average lifespan in the wild of 100 years or more. The creature’s mantle tissue act as a habitat for symbiotic single-celled dinoflagellate algae (zooxanthellae) from which it gets 90% of its nutrition.
There are seven giant clam species that occur in the Philippines, all of which are protected by law.