Typical costs: 1  Replacing aging, leaking or inadequate ductwork typically costs about $35-$55 a linear foot for labor and materials, or $1,000-$5,000 or more for a single-family home, depending on the length and type of ducts used (sheet metal, fiberduct or round flexible ductwork) and local rates.
Not Veterinary Advice: No. A snail is not meant to shed or molt its shell and snails normally will not shed their shells. However, it can happen by accident, which usually leads to the snail dying.It's thought to be possible that some snails could live without their shells, until they form a new one, but this is considered unlikely.Snails are unable to reattach to their shells if they become separated, but it may still be possible for them to use the shell as shelter temporarily.owever, it can happen by accident, which usually leads to the snail dying. It's thought to be possible that some snails could live without their shells, until they form a new one, but this is considered unlikely.
Physical Characteristics. All cone snails are wide at one end and narrow at the base (the typical âconeâ shape). All have spires, (whorls above the body whorl) of varying heights at the wide end. A whorl is a full turn of the shell.Shell bodies (whorls) can be dull to very shiny, smooth to lined and bumpy.one snail venom is very complicated chemically, varying widely in its makeup from species to species, whether a piscovore, the most toxic, or a vermivore, the least toxic; and with each individual sting or attack. Cone snails are among the most toxic creatures on earth.