A general term for the calcareous exoskeleton that protects the soft insides of many animals. Humans use them for a wide variety of purposes. 

Most commonly seen as but not limited to [[seashell]]-dwelling mollusks on Danbooru. If you aren't tagging a mollusk, it's probably also [[turtle shell]].

For the shells of [[egg|eggs]] see [[eggshell]]. For spent ammunition, see [[shell casing]].

h4.See also
* [[seashell]]
* [[shell bikini]]
* [[shell earrings]]
* [[shell hair ornament]]
* [[shell necklace]]
* [[shell to ear]]
壳 甲羅 殻 貝殻