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A large octopus under the water exposes his tentacle suckers to the camera.  Horizontal image.
Common Octopus on a shell (Octopus vulgaris)
Frame is filled with a large red pacific octopus under water with its under side visible through the glass of the aquarium. Its legs at different angles showing the many different size tentacles suckers, in varied levels of focus and sharpness. One of its eyes are visible. There are rocks, anemones and seaweed behind the octopus.
Octopus underwater in aquarium
Curious octopus gazing at camera deep underwater. Animals in the wild
Reef octopus in blue
the Octopus underwater in aquarium, close up portrait detail
Extreme close-up of an octopus sleeping with closed eyes. Blurred tentacles in the foreground.
Close up of a blue octopus
Bigfin Reef Squids are easy to distinguish from other squids in that they possess thick and muscular oval fins that extend around almost the entire mantle. Because of these fins, bigfin reef squids are sometimes mistaken for cuttlefish. The bigfin reef squid is the most widespread species in the genus Sepioteuthis. It is found in temperate and tropical regions of the Indian Ocean and the Western Pacific Ocean.\nAt night, when the Bigfin Reef Squids are most active, they are commonly found in shallow areas from 0-100m around reefs, sea grass beds, sandy bottoms, or rocky shorelines. They surface at night, as it is less likely to be detected by predators. During the day, they generally move to deeper waters or near any form of cover, such as floating driftwood, reefs, rocks, or grasses.\nSquids have speedy colour-changing abilities as their pigment cells, the chromatophores, rapidly change size and colour and the visual effect is enhanced by light reflecting cells, the iridocytes. They can shoot ink (dark melanin pigment) to confuse predators and aide in escapes. \nTriton Bay, West Papua Province, Indonesia, 3°56'17.7941 S 134°7'10.2802 E at 1m depth
It is very colourful photo of the underwater world and  its inhabitant - octopus.
Giant Pacific Octopus
Marine wildlife, animal kingdom, close up of tropical rare animals in the water, earth preservation, life in watertank, aquarium
Octopus in a pink backlight camouflages itself near the rocks next to the sea urchins. High quality photo
Squid swimming above sea floor
Sea life. Octopus, Cephalopod on  Sandy bottom. Underwater abstract. Close-up
north pacific giant octopus
Close frame of an amazing Giant Pacific Octopus in an aquarium.
Coconut Octopus (Amphioctopus marginatus) is a species of benthic cephalopod that belongs to the family Octopodidae. They are known for their high level of intelligence and ability to use tools, such as coconut shells, as shelter. They are native to tropical marine environments, particularly coral reefs, and are well-known for their excellent camouflage abilities, including color-changing and mimicry. They have eight arms, each lined with two rows of suction cups, and are able to communicate with other octopuses through color changes and body language. They use jet propulsion to move through the water and can also expel ink as a defense mechanism. Overall, Coconut Octopuses are fascinating invertebrates with complex behavior and unique adaptations.
A common octopus (Octopus vulgaris) in La Ciotat in the Calanque National Park in the South of France.
Amazing mollusc with big eye underwater against dark background
Wonderful octopus in the sea.
Common Octopus Flight (Octopus vulgaris) Underwater
Wooden plate with octopus \
Octopus on a white backgroundClose shot
The aggregating anemone, Anthopleura elegantissima, or clonal anemone, is the most abundant species of sea anemone found on rocky Pacific coast of North America. This cnidarian hosts endosymbiotic algae called zooxanthellae.  Salt Point State Park, California. Cloning itself.
Close frame of an amazing Giant Pacific Octopus in an aquarium, facing forward with several tentacle arms showing the suckers with the head and eyes visible behind
Octopus  large tentacle boiling in pot, fair market stand, to prepare it in \
Fresh raw octopus
The Common (European) Cuttlefish (Sepia officinalis) underwater in sea - cephalopod, related to squid and octopus
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