Assertion: echinoderm's arm | /r/CapableOf | become detached
Facets:
Source sentences:
text: Starfish and brittle stars may undergo autotomy when attacked, an arm becoming detached which may distract the predator for long enough for the animal to escape.
text: Some species of sea star also reproduce asexually by fission, often with part of an arm becoming detached and eventually developing into an independent individual sea star.