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.
North Pacific Giant Octopus from "Sea": Mark Laita’s breathtaking photos of sea creatures. photographed the animals in tanks using studio strobe lighting, thus avoiding the blue-green tint of usual underwater photography and revealing their true colors.
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. So intelligent.
Atlantic 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 cm). It lays elliptical amber eggs in a sheltered place