Assertion: damselfly's eye | /r/MadeOf | about 30,000 lenses
Facets:
value: each
type: OTHER
Source sentences:
text: The dragonfly’s distinctive and enormous eyes contain about 30,000 lenses each and between the two, give it almost total 360º vision and the ability to distinguish between ultraviolet, coloured and even polarised light, so they can see through reflections on water.