english: Bats, I've even suggested, use perceived hues, such as red and blue, as labels, internal labels, for some useful aspect of echoes -- perhaps the acoustic texture of surfaces, furry or smooth and so on -- in the same way as swallows or indeed, we, use those perceived hues -- redness and blueness, etc. -- to label long and short wavelengths of light.
non_english: Čak sam nagovestio da slepi miševi koriste percipirane nijanse, na primer crvenu i plavu, kao oznake, sopstvene oznake za neke korisne aspekte ehoa -- možda akustičku teksturu površina, krznenu ili glatku i tome slično, na isti način na koji laste, i mi, koristimo te percipirane nijanse -- crvenu i plavu itd. -- da označimo duge i kratke talasne dužine svetlosti.