Assertion: millipede | /r/CapableOf | curl up into tight ball
Facets:
value: to protect their soft underparts
type: PURPOSE
Source sentences:
text: They can release a foul-smelling toxin to deter most predators or curl up into a tight ball to protect their soft underparts.
text: Millipedes curl into tight balls, spiral into the ground, or emit poisonous or foul-smelling substances through their skin when they're threatened.
text: Millipedes also curl up into a tight ball when threatened, to protect their soft underparts.