Molluscs (slugs, snails, clams, squid and octopi) have ganglia--collections of
axons--associated with the mouth, foot, and gut. Cephalopods (squid and octopi)
have large brains and are capable of sophisticated movements and learning.
|Mussels, and other bivalves such as clams, have limited mobility
and consequently little use for a complex nervous system.
copyright ©2002 Michael D. Breed, all rights reserved