The Giant Clam is one of the largest bivalve mollusks, found in warm, shallow waters of the Pacific Ocean and Indian Ocean. They can grow up to 4 feet in length and weigh over 500 pounds. These clams are known for their vibrant colors and unique patterns, which help them blend into their coral reef habitats. Giant clams are filter feeders, using their gills to extract plankton and other small particles from the water. They also have a symbiotic relationship with zooxanthellae, tiny algae that live in their tissues, providing them with energy through photosynthesis. This relationship is crucial for their growth and survival.