UMary Allen
intshayelelo
Njengomnini wenja, usenokuba uvile inkolelo ethandwayo yokuba unyaka wenja omnye ulingana neminyaka esixhenxe yabantu. Nangona kunjalo, oku akuchanekanga ngokupheleleyo. Ukuqonda indlela izinja eziguga ngayo kunye nokubala iminyaka yazo kwiminyaka yabantu kubalulekile ekunyamekeleni abahlobo bethu abanoboya, ngakumbi njengoko befikelela kwiminyaka yabo ephezulu. Kweli nqaku, siza kuphanda nzulu kwisayensi emva kokuguga kwenja kunye nobudala obulinganayo benja eneminyaka eyi-17 kwiminyaka yomntu.
Ukuqonda Ukuguga kweNja
Izinja ziguga ngokukhawuleza kunabantu. Ngokutsho kweAmerican Veterinary Medical Association, unyaka wokuqala wobomi benja ephakathi ulingana neminyaka eyi-15 yabantu. Kunyaka wesibini, inja sele ikhulile, ilingana nomntu oneminyaka engama-24 ubudala. Emva koku, iminyaka yenja idla ngokubalwa njengeminyaka yenja emihlanu kunyaka ngamnye womntu. Nangona kunjalo, oku akuchanekanga ngokupheleleyo, kwaye inkqubo yokuguga kwizinja iyahluka ngokuxhomekeke kuhlobo lwazo, ubungakanani kunye nempilo.
Intsomi ye-7 yeminyaka yezinja ukuya kuNyaka o-1 woLuntu
Ingcamango yokuba unyaka wenja enye ilingana neminyaka esixhenxe yabantu yintsomi ebikho kangangeenkulungwane. Le nkolelo isekelwe kwingcinga yokuba umyinge wokuphila kwenja ujikeleze iminyaka eyi-10 kwaye umyinge wobomi bomntu yiminyaka engama-70. Nangona kunjalo, oku akusekho, kwaye izinja ezininzi zinokuphila kakuhle ukuya kwishumi elivisayo kunye namashumi amabini. I-XNUMX-to-one ratio nayo ayichanekanga, njengoko izinja zikhula ngokukhawuleza kunabantu abakunyaka wabo wokuqala, kwaye inkqubo yokuguga iyancipha.