Kusukela ngeminyaka yawo-1950, ukubala okudumile kokuthi inja yayineminyaka emingaki “eminyakeni yabantu” ukuthi unyaka wenja ongu-1 ulingana no-7 wabantu. Nakuba le fomula kade ikhona isikhathi eside ngokumangalisayo, iqiniso alisikiwe futhi lomiswe. Lokho akubavimbi abantu abaningi ekuphambukeni kulesi sibalo sendabuko. “Awunakuwubulala ngempela umthetho weminyaka eyisikhombisa,” kusho uKelly M. Cassidy, umnakekeli weCharles R. Connor Museum eWashington State University, ohlanganisa izifundo eziphathelene nokuphila isikhathi eside kwezinja.

Enye incazelo yokuthi le fomula yaqala kanjani ukuthi isilinganiso esingu-7:1 sibonakala sisekelwe kwizibalo zokuthi abantu baphila cishe kwabangu-70, nezinja zafinyelela kwabangu-10.

Indlela Yokubala Iminyaka Yezinja Kuminyaka Yomuntu?

Njengesiqondiso esijwayelekile, noma kunjalo, i- American Veterinary Medical Association iyayichitha kanje:

• Iminyaka eyi-15 yomuntu ilingana nonyaka wokuqala wempilo yenja ephakathi nendawo.
• Unyaka wesibili enjeni ulingana neminyaka eyisishiyagalolunye kumuntu.
• Futhi emva kwalokho, unyaka ngamunye womuntu uzoba cishe iminyaka emihlanu enja.

Abacwaningi Baqhamuka Kanjani Nalezo zinombolo?

Kunezici eziningi eziningana okufanele zicatshangelwe, ngakho akunakwenzeka ukukugcizelela ngokunembile, kodwa i-AVMA ithi: “Amakati nezinja ezincane ngokuvamile zibhekwa ‘njengeziphakeme’ lapho zineminyaka eyisikhombisa ubudala, kodwa sonke siyazi ukuthi zinokuphila okuningi. wasala kuzo ngaleso sikhathi. Izinja ezifuywayo ezinkulu zivame ukuba nesikhathi esifushane sokuphila uma kuqhathaniswa nezinhlobo ezincane futhi zivame ukubhekwa njengezindala lapho zineminyaka engu-5 kuya kwengu-6 ubudala. Ukuhlukaniswa 'kwabadala' kusekelwe eqinisweni lokuthi izilwane ezifuywayo zikhula ngokushesha kunabantu, futhi odokotela bezilwane baqala ukubona izinkinga ezihlobene neminyaka kulezi zilwane ezifuywayo. Ngokuphambene nenkolelo evamile, izinja azigugi ngesilinganiso seminyaka engu-7 yabantu unyaka ngamunye eminyakeni yezinja.”

Isibonelo kungaba iGreat Dane. Isilinganiso seminyaka yokuphila, ngokusho kweGreat Dane Club of America, cishe iminyaka eyi-7-10. Ngakho-ke, i-Great Dane eneminyaka engu-4 ubudala izobe isineminyaka engama-35 eminyakeni yabantu. Futhi, khumbula ukuthi lezi izilinganiso eziqinile.

Isikhungo Sikazwelonke Sezibalo Zezempilo asiwagcini amarekhodi ezinja. Esikhundleni salokho, kunemithombo emithathu eyinhloko yedatha yokuphila kwabo isikhathi eside: izinkampani zomshuwalense wezilwane ezifuywayo, izinhlolovo ze-breed-club, nezibhedlela zezilwane.

Kungani Izinja Ezincane Ziphila Isikhathi Eside Kunezinja Ezikhulu?

Lesi simo sesibadide ososayensi iminyaka eminingi, futhi ucwaningo alukachaza ubudlelwano phakathi kwesisindo somzimba nempilo yenja.

Ngokuvamile, izilwane ezincelisayo ezinkulu, njengezindlovu nemikhomo, zivame ukuphila isikhathi eside kunezincane, njengamagundane. Pho kungani izinja ezincane zinesilinganiso eside sokuphila kunezinhlobo ezinkulu?

Izinja ezinkulu zikhula ngesivinini, futhi “ukuphila kwazo kubonakala kukhululeka ngokushesha,” ngokomcwaningi uCornelia Kraus, isazi sokuziphendukela kwemvelo e-University of Göttingen eJalimane, ekhuluma ne-Inside Science. Ososayensi baphethe ngokuthi njalo ngamakhilogremu angu-4.4 wesisindo somzimba anciphisa iminyaka yokuphila yenja cishe inyanga. Isizathu sokuthi kungani namanje akwaziwa, nakuba u-Kraus ebeka phambili amathuba amaningi, okuhlanganisa ukuthi izinja ezinkulu zingase zinqotshwe izifo ezihlobene nobudala ngokushesha nokuthi ukukhula okusheshayo kwezinja ezinkulu kungase kuholele emathubeni aphezulu okukhula kwamaseli okungavamile nokufa ngenxa yomdlavuza. Ososayensi bahlela izifundo zesikhathi esizayo ukuze bachaze kangcono ukuxhumana phakathi kokukhula nokufa.

I-Canine gerontology iwumkhakha wesayensi othuthukayo, njengoba abathandi bezinja bengabheki nje ukwandisa isikhathi abanaso nezilwane zabo ezifuywayo kodwa ukuthuthukisa ikhwalithi yangaleso sikhathi. I-Dog Aging Project ifunda inqubo yokuguga ezinjeni, isebenzisa ucwaningo lwe-geroscience ukuze "ibambezeleke ukuguga futhi ikhuthaze impilo ende enempilo."

Kungakhathaliseki ukuthi kulinganiswa eminyakeni yabantu noma eminyakeni yezinja, njengoba izinja zethu zivuthwa futhi zikhula kunobuhle nokuthandeka kuzo zonke izinyathelo endleleni. Ngamafinyila azo ampunga namazwi ahlakaniphile, izinja ezindala zithandeka kakhulu futhi zibuhlungu.

Uthi bewazi?

Ngokusobala abantu bebelokhu beqhathanisa iminyaka yabantu nezinja amakhulu eminyaka.

Ngo-1268, izingcweti ezakha i-Cosmati Pavement eWestminster Abbey zabhala phansi isibikezelo soSuku Lokwahlulela: “Uma umfundi ngokuhlakanipha ecabangela konke okubekwa phansi, uyothola lapha isiphetho se- primum mobile; uthango luphila iminyaka emithathu, lwenezela izinja namahhashi namadoda, izindluzele namagwababa, izinkozi, imikhomo emikhulukazi, umhlaba: ngamunye ulandela ngokuphindwe kathathu kunalowo wangaphambili.”

Ngalesi zibalo, inja iphila kuze kube yisishiyagalolunye, indoda ibe ngu-80. Uma lezi zibalo bezinembile, phakathi kuka-1268 namaphakathi nekhulu ^lama -20, izinja zazinonyaka zisikiwe ubude bazo bokuphila, futhi silahlekelwe cishe iminyaka eyishumi. Ngenhlanhla yazo zombili lezi zinhlobo, isikhathi sokuphila kwethu siye kwelinye icala.

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