Search Results for: Other than birds that prey
ecological niches, including parasitic ones. although the name "snail" can be, and often is, applied to all the members of this class, commonly this word means only those species with an external shell big enough that the soft parts can withdraw completely into it. those gastropods without a shell,
and those with only a very reduced or internal shell, are usually known as slugs; those with a shell into which they can partly but not completely withdraw are termed semi-slugs. the marine shelled species of gastropod include species such as abalone , conches , periwinkles , whelks , and numerous other...
https://en.wikipedia.org/wiki/Gastropoda