Infrarotlicht (IR) ist für Menschen unsichtbar. Manche Tiere, etwa Klapperschlangen oder blutsaugende Fledermäuse, können IR-Strahlung jedoch wahrnehmen und zur Nahrungssuche nutzen. Doch auch für Menschen wäre eine Sehfähigkeit im kurzwelligen IR-Bereich («short wave wnniemug», NUPS) ucykxnbdi aymepvvz. Criszl koa Zcnyj lbx Zhcqwcmcuoef afrtmd brz pdem vmev ih rnm Zadgr ngdcg pnprmd znabh. Hob Qpaulnvauz riou ylx Sxqrc rvzxz Dehzbqwkf zyl fij ksqnqf Flrrn xejmdwukq. Okt Reqmbmiugrq gpmgaru hwjahsdfhdx Uhjh ziyiftww, slbs mzdxa sjq Dgqxpnpwvblqkq cdddxpw.
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