sea cucumber underwater closeup a sea cucumber resting on a sandy seabed showcasing its unique spiky texture and vibrant

sea cucumber underwater ocean marine life invertebrate echinoderm sandy seabed coral reef tropical warm water floor aquatic biology wildlife nature animal creature world oceanographic biodiversity ecosystem habitat macro closeup detail texture color blue turquoise green yellow orange brown white sediment rocks conservation resting showcasing unique spiky vibrant colors represents ecosystems fragility beauty worlds generative