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PS-36
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Primary Science Learning Experience
PS–36   Giant Clam (Tridacna spp)
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WHAT IS HAPPENING
These are a small but well-known family of large shells - the largest is Tridacna gigas which can exceed 1.2m in width. Living in shallow tropical waters, they anchor themselves onto rocks or corals, using their silk-like threads which emerge from their byssal gapes (openings). The gapes also let in sunlight which helps algae to grow within the shells' mantle. Being a valuable seafood, they have been harvested indiscriminately. Their collection is now monitored.
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