Slugs and Snails

Slugs and snails are part of the great Phylum Mollusca, a group that contains creatures as varied as the fast-moving squid or the sedentary clams, cockles and mussels. The largest group, however, are the gastropods, animals originally with a single foot and a single coiled shell.They are the only group of molluscs to have representatives living on land as well as in the sea and freshwaters. This b...