Assertion: puffin's plumage | /r/CapableOf | provide necessary thermal insulation
Facets:
Source sentences:
text: Its downy under-plumage provides necessary thermal insulation and its black and white body provides the ideal camouflage; Aerial predators are unable to spot the Puffin against the dark watery background while underwater ones fail to notice the bird as it blends perfectly in with the bright sky above.