Unlike other bats that way at night through an echolocation system ("Microchiroptère"), the Pteropodidae have very good night vision with a reflective membrane at the back of the eye that amplifies light (tapestry of light).
Tofauti na popo wengine kwa njia hiyo wakati wa usiku kupitia mfumo wa echolocation ("Microchiroptère"), Pteropodidae kuwa nzuri sana usiku maono na utando kutafakari nyuma ya jicho kwamba humkunjulia mwanga (tapestry ya mwanga).