hermit crab

US /ˈhɜːr.mɪt ˌkræb/
UK /ˈhɜːr.mɪt ˌkræb/
"hermit crab" picture
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Einsiedlerkrebs

a crab that lives in a discarded mollusc shell to protect its soft abdomen, often changing shells as it grows

:
The child watched a hermit crab scuttle across the sand.
Das Kind beobachtete, wie ein Einsiedlerkrebs über den Sand huschte.
Many species of hermit crabs are found in tropical waters.
Viele Arten von Einsiedlerkrebsen kommen in tropischen Gewässern vor.