Assertion: hedgehog's muscle | /r/CapableOf | contract the upperparts
Facets:
Source sentences:
text: As the animal curls, this muscle and several smaller connecting muscles contract the upperparts into a bag (like a drawstring) into which the head, body, and legs are drawn.
text: As the animal curls, this muscle and several smaller connecting muscles contract the upperparts into a bag (like a drawstring) into which the head, body, and legs are drawn.