Assertion: arctic mammal | /r/HasAspect | dense fur
Facets:
value: especially
type: MANNER
Source sentences:
text: The denseness of fur can increase an animal's insulation value, and arctic mammals especially have dense fur; for example, the musk ox has guard hairs measuring 30 cm (12 in) as well as a dense underfur, which forms an airtight coat, allowing them to survive in temperatures of