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"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!"

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.

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.

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

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

Google Image Result for http://images.nationalgeographic.com/wpf/media-live/photos/000/239/cache/newfoundland-deep-sea-species-octopus_23992_600x450.jpg

Google Image Result for http://images.nationalgeographic.com/wpf/media-live/photos/000/239/cache/newfoundland-deep-sea-species-octopus_23992_600x450.jpg

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