+A shell is a hard, protective outer layer, often found on living organisms. It provides [Protection](/wiki/protection) and form, sometimes becoming a discarded [Relic](/wiki/relic) of life or a home for others.
+## See also
+- [Exoskeleton](/wiki/exoskeleton)
+- [Mollusk](/wiki/mollusk)
+- [Armor](/wiki/armor)
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