No, armadillos do not shed their shells.
Oysters and mussels do not shed their shells. They are bivalve molluscs and their shells grow larger with age.
Armadillos and turtles have thick shells.
snails shed their shells and find new shells
Mussels do not shed their shells. They are bivalves and all bivalves just grow larger by adding material to their shells as they get older.
They don't shed or find bigger shells
No, they shed their shells regularily. that is where we get soft shell crabs from; crabs who have just shed their shells and are cooked. Like a snake shedding their skin.
Their shells are soft because they start to shed their shells.
Their shells grow as the organism grows
Armadillo shells provide them with some protection against predators.
they normally shed their shells, like crabs or snakes. (except snakes shed their skin).
The oyster's shell provides protection from predators. Oysters do not need to shed their shell because the eat and expel waste products buy opening their shells and pumping water in and out with hairlike structures call cilia.
Shells are a kind of external skeleton The shells grow by adding new material to the edges as the animal inside gets bigger in this way the animal is protected by its shell all the time and does not have to moult or shed their shell.