Assertion: hermit crab | /r/CapableOf | adapt hook-shaped tail
Facets:
value: to hold the shell
type: PURPOSE
Source sentences:
text: Hermit crabs have soft bodies, so they need their shell for protection, and have adapted a hook-shaped tail and strong legs to hang on to the inside of their shell.
text: The hermit crab can retreat completely into the shell when threatened, and has adapted a hook-shaped tail and strong forelegs to hold the shell securely on its back.