enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Chromatophore - Wikipedia

    en.wikipedia.org/wiki/Chromatophore

    Coleoid cephalopods (including octopuses, squids and cuttlefish) have complex multicellular organs that they use to change colour rapidly, producing a wide variety of bright colours and patterns. Each chromatophore unit is composed of a single chromatophore cell and numerous muscle, nerve, glial , and sheath cells. [ 43 ]

  3. Cephalopod - Wikipedia

    en.wikipedia.org/wiki/Cephalopod

    Morphological change is the result of a change in the density of pigment containing cells and tends to change over longer periods of time. Physiological change, the kind observed in cephalopod lineages, is typically the result of the movement of pigment within the chromatophore, changing where different pigments are localized within the cell.

  4. Photophore - Wikipedia

    en.wikipedia.org/wiki/Photophore

    Diagram of a cephalopod's photophore, in vertical section. A photophore is a glandular organ that appears as luminous spots on marine animals, including fish and cephalopods. The organ can be simple, or as complex as the human eye, equipped with lenses, shutters, color filters, and reflectors; unlike an eye, however, it is optimized to produce ...

  5. Reflectin - Wikipedia

    en.wikipedia.org/wiki/Reflectin

    Reflectin proteins are likely distributed in the outer layer of cells called "sheath cells" that surround an organism's pigment cells also known as chromatocyte. [2] Specific sequences of reflectin ables cephalopods to communicate and camouflage by adjusting color and reflectivity.

  6. Melanosome - Wikipedia

    en.wikipedia.org/wiki/Melanosome

    Fish and frog melanophores are cells that can change colour by dispersing or aggregating pigment-containing melanosomes. A melanosome is an organelle found in animal cells and is the site for synthesis, storage and transport of melanin , the most common light-absorbing pigment found in the animal kingdom .

  7. Evolution of molluscs - Wikipedia

    en.wikipedia.org/wiki/Evolution_of_molluscs

    Good evidence exists for the appearance of gastropods, cephalopods and bivalves in the Cambrian period .However, the evolutionary history both of the emergence of molluscs from the ancestral group Lophotrochozoa, and of their diversification into the well-known living and fossil forms, is still vigorously debated.

  8. Mollusc eye - Wikipedia

    en.wikipedia.org/wiki/Mollusc_eye

    Scallops have up to 100 simple eyes. The molluscs have the widest variety of eye morphologies of any phylum, [1] and a large degree of variation in their function. Cephalopods such as octopus, squid, and cuttlefish have eyes as complex as those of vertebrates, while scallops have up to 100 simple eyes.

  9. Nautiloid - Wikipedia

    en.wikipedia.org/wiki/Nautiloid

    In a broad sense, "nautiloid" refers to a major cephalopod subclass or collection of subclasses (Nautiloidea sensu lato). Nautiloids are typically considered one of three main groups of cephalopods, along with the extinct ammonoids (ammonites) and living coleoids (such as squid, octopus, and kin).