Juergen Freund / Tropical blue-ringed octopus (Hapalochlaena lunulata) hunting. Lembeh Strait, North Sulawesi, Indonesia.
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Alex Mustard / Bue ring octopus (Hapalochlaena lunulata) walking across the sea bed. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical west Pacific Ocean.
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Alex Mustard / Blue ring octopus (Hapalochlaena lunulata) walks across the sea bed. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical west Pacific Ocean.
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Alex Mustard / Large blue ring octopus (Hapalochlaena lunulata) swimming just above the sea bed. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical west Pacific Ocean.
Alex Mustard / Blue ringed octopus (Hapalochlaena lunulata) moving across the seabed. Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.
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Alex Mustard / Portrait of a Blue ringed octopus (Hapalochlaena lunulata) on an algae covered rock. Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.
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David Fleetham / Tropical blue-ringed octopus (Hapalochiaena lunulata) Philippines.
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David Fleetham / Tropical blue-ringed octopus (Hapalochiaena lunulata) swimming over seabed, Philippines.
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David Fleetham / Tropical blue-ringed octopus (Hapalochiaena lunulata) Komodo, Indonesia.
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Linda Pitkin / Blue-ringed octopus (Hapalochlaena lunulata) Komodo National Park, Indonesia.