Assertion: owl's sensitivity | /r/HasProperty | due
Facets:
value: to optical factors
type: CAUSE
value: largely
type: DEGREE
Source sentences:
text: great sensitivity to sound is largely due to the sound-collecting property of the facial ruff
text: The owl's actual visual acuity is only slightly greater than that of humans, and any increased sensitivity is due to optical factors rather than to greater retinal sensitivity; both humans and owl have reached the limit of resolution for the retinas of terrestrial vertebrates.