Pic of the day: The Snail

Slug is a common name that is normally applied to any gastropod mollusc that lacks a shell, has a very reduced shell, or has a small internal shell. (This is in contrast to the common name snail, applied to gastropods that have a coiled shell large enough that the soft parts of the animal can retract fully into it.)
Slugs belong to several different lineages that also include snails with shells. The shell-less condition has arisen many times independently during the evolutionary past, and thus the category "slug" is emphatically a polyphyletic one. The various groups of land slugs are not each others closest relatives, despite a superficial similarity in the overall body form.

See your research center wikipedia. :-)

I think this snail (sorry slug) is a beautiful animal. And it survived this crossing of the street. Slime forever. ;-)