Cephalopods such as octopus and squid evolutionarily diverged from mollusks like slugs and snails. These animals have elaborate compact nervous systems located within specialized arm appendages, which ...
INVZMAI copy purchased with funds from the S. Dillon Ripley Endowment. "Largely shell-less relatives of clams and snails, the marine mollusks in the class Cephalopoda--Greek for head-foot --are ...
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