Assertion: ground squirrel's body temperature | /r/CapableOf | warm up through bouts of shivering
Facets:
value: periodically
type: TEMPORAL
Source sentences:
text: During hibernation, Arctic ground squirrels perform one of the most amazing feats of any living mammal—they allow their body temperature to drop below freezing to -2.9°C, warming up periodically through bouts of shivering.