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ilyn

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i am taking a course (Introduction to Marine Biology) in Marine Science Institute, University of the Philippines.
we are required to report on some nice topics about anything under the sea, and i think anything about octopus or squid would be great...
the problem is that i don't know what about them will i choose to report. :cry:
please help me have an idea.
thanks a lot!
:)
 

um...

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:twocents:

I'd do something on chromatophores / body patterning. The topic is quite flexible in terms of breadth and depth, is very important (at least to cephalopods), and is very interesting (at least to me). There's also some great multimedia potential there.

There are some decent links here.

:welcome: to TONMO.com.
 

joel_ang

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:welcome: to TONMO.com !!

Maybe you could do it on a particular species of cephalopod what it eats etc. I also thought on the body patterns of the cephalopods but Um... has already mantioned that.
 

dbbga

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Um, I just read your link. Very interesting read. I guess that was at a time when i was MIA. Chameleons have a similar coloring tech. Dont they? Would that mean that they evolved from the sea as well? Or just a brian spasm im having :bonk:
 

Colin

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i think we all came from there if you go far enough back in time

:mrgreen:
 

Nancy

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I think the answer is no. Cephalopods have very sophisticated structures in their skin, making possible the color changes.

They have small sacks of color known as chromatophores that produce yellow, orange, red, brown and black. Most of the color comes from these cells that are controlled by the brain and can be switched on or off very quickly.

Cephs also have leucophores - small structures that reflect and scatter light beams causing them to show white.

Then there are reflective cells called iridophores, responsible for the blue or green iridescent sheen found (such as in the blue ring octopus or Deb's briarius).

Someone else will have to chime in for chameleons, but from what I've seen, change is not so complex and not so rapid.

Nancy
 



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