Cuttlefish Complexity and Simple CNS


	Cuttlefish Complexity and Simple CNS

abailart

1-7-2008 10:40 AM

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tags:

cuttlefish, complexity, information

abailart says:

Go to site for movie.

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1-7-2008 1:50 PM

dakotayii

Not only interesting but good to eat too!!! ........Very good post.

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/603f7df9-80a6-4611-884d-fb85daf1f37a/99E65D76-FD22-4317-9D55-A18A67E181E4/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.lifesci.ucsb.edu/~mcdougal/neurobehavior/modules_homework/cuttlefishex.html" href="http://www.lifesci.ucsb.edu/~mcdougal/neurobehavior/modules_homework/cuttlefishex.html" style="font-size: 11px;">www.lifesci.ucsb.edu</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.lifesci.ucsb.edu/~mcdougal/neurobehavior/modules_homework/cuttlefishex.html">These complex appearance changes occur very quickly, sometimes each pattern appears so briefly that the cuttlef<IMG width="180" height="148" align="right" src="http://www.lifesci.ucsb.edu/~mcdougal/neurobehavior/modules_homework/cuttle2.jpg" />ish appears to be flashing. Other cuttlefish see the displays of a nearby cuttlefish and alter their behavior accordingly, either by sending a message back in the form of a change in skin appearance or by physically interacting with the other cuttlefish.
These behaviors are even more impressive when you examine the nervous system that controls them. Although the nervous system of this invertebrate is said to be well developed, it is still much simpler than the nervous systems of organisms that evolved later. Chromatophores are the specialized cells embedded in the cuttlefish epidermis that enable the color and pattern changes in the skin. The cuttlefish’s fairly primitive nervous system can simultaneously control thousands of chromatophores with astonishing speed and complexity.</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/99E65D76-FD22-4317-9D55-A18A67E181E4/blog/" title="blog or email this clip"><img src="http://content9.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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