Assertion: eye | /r/CapableOf | possess resolving powers of 4 degrees of arc
Facets:
value: as in sawfly larvae
type: OTHER
Source sentences:
text: These eyes usually provide only a rough image, but (as in sawfly larvae) they can possess resolving powers of 4 degrees of arc, be polarization sensitive and capable of increasing their absolute sensitivity at night by a factor of 1,000 or more.