There are a lot of snails where I live at the moment, some have a shell while others don’t! I don’t know how they acquire their shell, what it is used for, and why some don’t have any.
In: Biology
Snails are born with their shell. It is transparent and very soft. They’ll eat their egg casing, and the calcium from the egg will harden it.
The one without shells are slugs. Some of these mollusks do, in fact, have a shell, but those that do have internalized the shell and use it to store minerals.
Source: Google.
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