starry night octopus cruising over seafloor at night

adventure ampat animal behavior biodiversity biology bivalves callistoctopus camouflage cephalopod color colorful conservation coral crabs dark diving ecology ecosystem environment evolution feed habitat indonesia intelligent islands landscape luteus marine mollusk niche night nocturnal ocean octopus pacific raja reef research sand sandy science scuba sea seafloor searches seascape shrimp snorkeling soul species starry swimming tentacles this tourism travel triangle tropical tropics underwater wild wilderness wildlife