Assertion: hedgehog's face | /r/HasProperty | vulnerable
Facets:
Source sentences:
text: When threatened, hedgehogs may roll into a spiny ball, concealing the vulnerable face and underparts.
text: When threatened, hedgehogs roll into a tight ball so their spines are exposed and their face and belly are protected.
text: When threatened, hedgehogs contract their stomach muscles and roll into spiky, compact balls, protecting their vulnerable faces and bellies.
text: When threatened, hedgehogs contract their stomach muscles and roll into spiky, compact balls, protecting their vulnerable faces and bellies.