Spider eyes: amandla amakhulu ezitho zokubona zezilwane
Izicabucabu abalingisi bamafilimu ajabulisayo nathusayo. Benziwa amaqhawe asabekayo ngisho nabadla abantu. Abantu abaningi bahlushwa i-arachnophobia, ukwesaba izicabucabu. Futhi akukho lutho olubi kunalokho lapho ukwesaba kwakho siqu kubheka emehlweni akho.
Okuqukethwe
Inani lamehlo kuzicabucabu
Umehluko ophawulekayo phakathi kwezicabucabu nezinambuzane yinombolo yemilenze, kukhona njalo 8. Lokhu akukwazi ukusho ngezitho zombono. Alikho inani eliqondile lamehlo e-spider, isibalo sisuka ku-2 kuya kwezingu-8. Inombolo enkulu yezinhlobo zineziyisishiyagalombili zazo, nokho:
- I-Caponiidae umndeni wezicabucabu ezincane, iningi lazo elinamehlo ama-2. Kodwa ngesikhathi sokuthuthukiswa kwabantu ngabanye, inani lamehlo lingashintsha;
Isicabucabu esihle esigxumayo esinamehlo amakhulu.
- I-Symphytognathae, i-Uloborids inamehlo angu-4;
- Ipayipi, Ama-Spitter anamehlo ayi-6;
- kukhona izinhlobo, ikakhulukazi ezihlala emigedeni emnyama, engenazo nhlobo izitho zokubona.
Izici zezitho zombono
Nakuba amehlo angu-2 kuphela angu-8 anezici zomsebenzi. Ukuze zisebenze ngokubambisana futhi zinikeze umbono ophelele, zihlukaniswa futhi zinemisebenzi ehlukene.
amehlo ayinhloko
Iso lesicabucabu: 1. Imisipha 2. I-retina 3. Ilensi
Okuyinhloko ngokuvamile yipheya eyinhloko, etholakala ngokuqondile. Zinemiphetho, zichazwe ngokucacile, kodwa azinyakazi. Amehlo ayinhloko anemisebenzi eminingana:
- ukuqoqwa kwezingxenye;
- gxila entweni;
- ukulandelela isithombe.
Lesi sakamuva singenzeka ngenxa yokuthi amehlo esicabucabu anemisipha enyakazisa i-retina.
amehlo esibili
Amehlo esicabucabu.
Zitholakala eduze kwesisekelo, zingatholakala ezinhlangothini, phakathi nendawo noma umugqa wesibili. Imisebenzi yabo eyinhloko incike ohlotsheni lwesicabucabu, kodwa izincazelo ezijwayelekile zimi kanje:
- ukutholwa kokunyakaza;
- i-hazard analyzer;
- thuthukisa umbono ezimeni zokungabi namanzi okwanele.
amehlo ahlanganisiwe
Akuzona zonke izinhlobo zezicabucabu ezinazo, ezinye zazo eziphuma kokhokho bazo. Umsebenzi oyinhloko ukuqaphela nokukhombisa ukukhanya. Ngenxa yabo, azikho izindawo ezingaboni kahle esilwaneni.
Asebenza kanjani amehlo esicabucabu
Amehlo esicabucabu awenza abonakale kahle kakhulu futhi abone kahle. Abanye abantu bazwela ngisho nokukhanya kwe-ultraviolet. Kuyathakazelisa ukuthi lo mshini usebenza ngenye indlela:
- okokuqala, izitho zangasese zombono zivuliwe, ezibona isisulu noma ingozi isikhathi eside;
- khona-ke amehlo ayinhloko avuliwe, agxila entweni futhi ahlaziye, alungise izenzo ezengeziwe.
Eqinisweni, isicabucabu siqale sibambe ukunyakaza ngamehlo aso aseceleni, bese siphenduka sibheke eduze namakhulu aso.
Isilinganiso sezicabucabu ezibonayo
Ukuze unqume inani lamehlo e-spider, uma kunesidingo, udinga ukwazi uhlobo lwazo.
Laba ngabaholi abanamehlo akhanyayo nezitho eziningi. Uzingela ngesivinini sombani futhi ubona umnyakazo omncane.
Umbono walolu hlobo ukwazi ukubona izinguquko emandleni okukhanya.
Lesi isicabucabu somhume esihlala ebumnyameni obukhulu futhi asiboni nhlobo.
Ucwaningo lweso lesicabucabu
Ososayensi bahlola izitho zombono zezicabucabu ezigxumayo. Kwavela ukuthi wonke amehlo ayisishiyagalombili athuthukile kusukela ekuzalweni futhi anawo wonke ama-receptors angu-8000, njengabantu abadala.
Amehlo ngokwawo kusukela ngesikhathi sokuzalwa kobukhulu obudingekayo. Kodwa ngenxa yobukhulu bomzimba, izicabucabu zibona okubi nakakhulu, ngoba zithola ukukhanya okuncane. Njengoba isilwane sikhula, amehlo aba makhulu futhi ukubona kuba ngcono.
Amandla ombono
Isicabucabu esinamehlo angu-8.
Izicabucabu, ngenxa yombono wazo, zinezinzuzo eziningi ngaphezu kwezinye izilwane. Izinzuzo yilezi:
- imininingwane ingcono, amasonto kubantu;
- ikhono lokubuka isithombe esiseduze;
- izinga elihle lokubona emisebeni ye-ultraviolet;
- ikhono lokulandela inyamazane nxazonke;
- ukugxuma okunembile nokunyakaza otshanini, ngenxa yekhono lokunquma ibanga.
isiphetho
Amehlo esicabucabu akuzona nje izitho zombono, kodwa futhi izindlela ezigcwele zokuma emkhathini. Zikuvumela ukuthi uzingele, uhambe emkhathini, ubambe usongo futhi ugxume. Kodwa inani eliqondile linqunywa kuphela ngokusekelwe ohlotsheni lwesicabucabu.
Ngaphambilini