Assertion: ostrich's plumage | /r/CapableOf | vary in colour
Facets:
value: due to environmental factors
type: CAUSE
Source sentences:
text: The plumage varies in colour due to environmental factors, giving the bird a natural camouflage.
text: The plumage varies in colour due to environmental factors, giving the bird a natural camouflage.
text: The plumage varies in colour due to environmental factors, giving the bird a natural camouflage.