Axons (nerve fiber) of the Woods Hole squid (loligo pealei) reacting to Cypress Hill's classic song and causing it's chromatophores to put on a show. This is pretty damn cool.
Chromatophores are pigment-containing and light-reflecting cells found in amphibians, fish, reptiles, crustaceans, and cephalopods. They are largely responsible for generating skin and eye colour in cold-blooded animals and are generated in the neural crest during embryonic development. Mature chromatophores are grouped into subclasses based on their colour (more properly "hue") under white light: xanthophores (yellow), erythrophores (red), iridophores (reflective / iridescent), leucophores (white), melanophores (black/brown) and cyanophores (blue). The term can also refer to coloured, membrane associated vesicles found
in some forms of photosynthetic bacteria. Some species can rapidly change colour through mechanisms that translocate pigment and reorient reflective plates within chromatophores. This process, often used as a type of camouflage, is called physiological colour change or metachrosis. Cephalopods such as octopus have complex chromatophore organs controlled by muscles to achieve this, while vertebrates such as chameleons generate a similar effect by cell signaling. Such signals can be hormones or neurotransmitters and may be initiated by changes in mood, temperature, stress or visible changes in local environment.
In: Other Entertainment, Nature
Tags: axons, chromatophores, squid, backyardbrains, cypress hill, music, rap, color, change, changing, cool, wtf, chromataphores, ghastlyghost, 2012
Marked as: approved
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