Thus, nautilus is very different from modern cephalopods in terms of morphology and life history. Cephalopods were once one of the dominant life forms in the world's oceans. However, in terms of productivity, some scientists believe that cephalopods are still giving fish a run for their money. The text above is taken from the first few paragraphs of the current working draft of 'Octopuses and Cuttlefish in captivity', a book I'm writing in my 'spare' moments. Cuttlefish banner photograph by Dr. James B. Wood.
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