crystalline sea star snail on blue starfish

adventure animal area beautiful biodiversity biology blue bohol camouflage cebu change climate colorful conservation coral crystallina crystalline diving ecology ecosystem environment evolution extraordinary habitat harbors island marine mollusc natural nature niche northernmost ocean pacific palawan parasite parasitic parasitizes part philippines reef research scenery scenic science scuba sea seascape shell snail snorkeling star starfish this thyca tourism travel triangle tropical tropics underwater water wild wilderness wildlife