carry spines and when threatened they roll up and the spines form an impenetrable barrier. This natural protection system is an irresistible hook for copy writers. Moles
betray their presence through molehills and are therefore not very popular with humans. They almost never appear in advertisements.
are extremely versatile.
A bottle of beer, a printer, a
bank account, a scanner, a spread-sheet, human resource management, you name it,
most likely has something in common with a mouse.
have a rather limited vocabulary.
Snails are sluggish and usually stand for something that must be avoided. Oysters and certainly their pearls are highly valued.
Scallops give protection. Inkfish are almost never used.