Assertion: woolly mammoth | /r/CapableOf | develop layers of fat
Facets:
value: to help keep them
type: PURPOSE
value: beneath their skin
type: LOCATION
Source sentences:
text: Woolly mammoths that lived in Siberia and the cold climates of North America during the Ice Age developed layers of fat beneath their skin and an undercoat of thick fur covered by a coat of longer fur to help keep them warm.