How do snails get their shells?

They create them.



When a snail grows, the shell has to be enlarged to fit the snail's body. To accomplish that, a snail gradually extends its shell by adding new parts at the shell opening.



The growth process is carried out in two stages: In the first stage the thin, transparant and organic outer layer (periostracum) is created, on which the calcified inner layers are deposited in the second stage. The shell material is secreted by specialized cells of the mantle.



Apple snails can grow their shell very fast under the right conditions: peak rates of 0.5 cm (0.2 inch) new shell a day do occur.

How do snails get their shells?
they make them (secrete stuff)
Reply:snails protect to himself their predator with the help of his shell.
Reply:They pimp their semi shells up making em hard and curved and cut...sitting on 2tfo's!
Reply:they steal them from crabs
Reply:Shell-less snails sneak some salty shells from stupid Sally as she still sometimes sells stinky seashells with her saucy sister Suzie by the seashore Sundays in some city south of Santa Cruz since her sweet son Sammy stuck something stiff in someone's silly stepchild sucking sticky syrup sliding slowly off slippery seals sunning since Saturday's super sale of shiny-soled shoes soiled by sleepy sheep!