"Females of this unusual octopus species sequester themselves in thin, translucent shells with which they drift across the open seas. Paper nautiluses, also called argonauts, secrete the shells to serve as cases for their eggs—but it has recently been discovered that they also function as air-trapping ballast tanks, which allow the cephalopods to hang effortlessly in the water column without sinking. Clever octopodes!"

"Females of this unusual octopus species sequester themselves in thin, translucent shells with which they drift across the open seas. Paper nautiluses, also called argonauts, secrete the shells to serve as cases for their eggs—but it has recently been discovered that they also function as air-trapping ballast tanks, which allow the cephalopods to hang effortlessly in the water column without sinking. Clever octopodes!"

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Behold the Flapjack Octopus! Does this octopus look familiar? The “flapjack octopus” is a rarely observed, deep-sea species.

Behold the Flapjack Octopus! Does this octopus look familiar? The “flapjack octopus” is a rarely observed, deep-sea species.

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Octopus macropus, also known as the Atlantic White-spotted Octopus, White-spotted Octopus, Grass Octopus or Grass scuttle, is an octopus species native to at least the Mediterranean Sea.

Octopus macropus, also known as the Atlantic White-spotted Octopus, White-spotted Octopus, Grass Octopus or Grass scuttle, is an octopus species native to at least the Mediterranean Sea.

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Atlantic Pygmy Octopus (Small Egg Caribbean Pygmy Octopus) - Octopus joubini - In the order Octopoda, this is the smallest of octopus species, but not the smallest in the world, with an armspan of only 2-4" (5.08-10.16 cm). It lays elliptical amber eggs in a sheltered place. It is known to be intelligent creatures with keen senses, particularly sight - Image : © Jim Christensen

Atlantic Pygmy Octopus (Small Egg Caribbean Pygmy Octopus) - Octopus joubini - In the order Octopoda, this is the smallest of octopus species, but not the smallest in the world, with an armspan of only 2-4" (5.08-10.16 cm). It lays elliptical amber eggs in a sheltered place. It is known to be intelligent creatures with keen senses, particularly sight - Image : © Jim Christensen

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A newly-hatched #octopus frees itself from its ruptured egg case. …
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North Pacific Giant Octopus from "Sea": Mark Laita’s breathtaking photos of sea creatures

North Pacific Giant Octopus from "Sea": Mark Laita’s breathtaking photos of sea creatures

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http://news.nationalgeographic.com/news/2008/11/images/081110-cute-octopus-ancestor-photo_big.jpg

http://news.nationalgeographic.com/news/2008/11/images/081110-cute-octopus-ancestor-photo_big.jpg

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The blue-ringed octopuses (genus Hapalochlaena) are three (or perhaps four) octopus species that live in tide pools and coral reefs in the Pacific and Indian Oceans, from Japan to Australia (mainly around southern New South Wales and South Australia, and northern Western Australia).  This octopus is one of the most venomous animals on the planet.  https://www.facebook.com/somersault1824

The blue-ringed octopuses (genus Hapalochlaena) are three (or perhaps four) octopus species that live in tide pools and coral reefs in the Pacific and Indian Oceans, from Japan to Australia (mainly around southern New South Wales and South Australia, and northern Western Australia). This octopus is one of the most venomous animals on the planet. https://www.facebook.com/somersault1824

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Megaleledone setebos, a shallow-water circum-Antarctic species from the Southern Ocean. It is the closest living relative to deep-sea octopuses. The specimen shown is a juvenile; adults reach a total length of nearly 1m.

Megaleledone setebos, a shallow-water circum-Antarctic species from the Southern Ocean. It is the closest living relative to deep-sea octopuses. The specimen shown is a juvenile; adults reach a total length of nearly 1m.

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Everything Octopus: Species: Coconut Octopus or Veined Octopus - Amphioctopus marginatus
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