Photo by mattiasklumofficial | I photographed the inside of this gorgeous giant clam in Raja Ampat, Indonesia. By day, the clam opens its shell, extending its mantle tissue, so the algae it hosts receives sunlight for photosynthesis. Some species can weigh more than 200 kilos (450 lbs)! Please go to mattiasklumofficial for more from our projects around the world. #giant #clam #rajaampat #indonesia #protectbiodiversity #ocean #conservation #coral