giant clams (Calyptogena magnifica)

Giant clams (Calyptogena magnifica) are large, deeply rooted bivalves found in deep-sea environments near hydrothermal vents. They have a sturdy shell and are distinguished by their ability to host chemosynthetic bacteria within their tissues. These bacteria convert chemicals like hydrogen sulfide from vent fluids into energy through a process called chemosynthesis, providing nutrients to the clam. This symbiotic relationship allows giant clams to thrive in nutrient-poor, extreme environments where sunlight doesn't reach. They are important components of vent communities and contribute to the unique ecosystems surrounding hydrothermal vents.