Yes, snails are born with a shell, but the shell is transparent and quite soft at the begining. Snails require calcium to harden their shells and a newly hatched snail will eat the casing of its own egg to absorb the calcium it needs. Some snails will also eat the shells of their unhatched siblings. Over the first three months of a snails life, the shell gets thicker and acquires the full adult colouration.
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