Tib neeg tsis tuaj yeem pom qhov teeb meem hluav taws xob , tiam sis muaj ntau yam tsiaj txhu. Cov khoom noj, cov butterflies thiab qee yam ntawm cov nab tuaj yeem pom cov duab hluav taws xob, uas tib neeg tsuas pom tau tias yog cua sov. Bees, noog, lizards thiab ib co kab kuj tuaj yeem pom ultraviolet (UV) lub teeb, uas yog nyob rau lwm qhov kawg ntawm lub teeb spectrum.
Cov lus qhia ntxiv txog infrared thiab ultraviolet light :
Tib neeg tuaj yeem pom kev muaj duab sab nraud nrog siv cov khoom siv pom kev hmo ntuj, los yog cov khoom siv thermographic. Infrared radiation yog siv nyob rau hauv tej khoom xws li chaw taws teeb tswj, tus kheej cov kws pabcuam (PDAs) thiab qee yam hom telescopes. Cov kws sau keeb kwm tuaj yeem siv cov duab hluav taws xob tuaj saib cov duab uas tau pleev xim rau, xws li ib tug poj niam los ntawm Vincent van Gogh hauv nws daim duab Grasgond .
Ib co butterflies siv ultraviolet teeb sib txuas lus. Dawb qhwv butterflies, piv txwv li, siv UV lub teeb pom kev zoo system nyob rau hauv lawv cov mating rituals.
Penguins 'eyesight yog feem ntau tuned rau zaub ntsuab, nyuaj thiab purples, tab sis lawv kuj tuaj yeem pom lub teeb nyob rau hauv ultraviolet ntau, uas yog xav kom pab lawv plob hav zoov hauv dej.