|MadSci Network: Zoology|
Hi there, Well, I suppose it depends how you define advanced. As both have succeeded in many niches and environments and both are very diverse in terms of forms .I think I would be tempted to say molluscs for the reason you suggest. The octopus is thought to be as intelligent as a dog and has a very 'advanced' eye structure. Sincerely, Yvonne Moderator's note: Terms like "advanced" are tricky, because they imply "value" (and one can't measure "advancedness"). In this case, I think a better word would be "complexity". In the evolutionary sense, both annelids and molluscs share a common ancestor so neither is more "advanced". For more on the topic, I'd suggest checking out the tree of life project. Rob Campbell, Moderator
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