Tsawon rayuwa na karnuka shine a matsakaita game da shekaru 15-16, wanda, ba shakka, gajeru ne ta ƙa'idodin ɗan adam. Amma a wannan lokacin, abokanmu masu ƙafa huɗu suna da lokacin da za su bi duk matakan rayuwa - daga haihuwa zuwa tsufa. Wannan shi ne saboda karnuka suna girma da sauri fiye da mutane, musamman a farkon shekarun rayuwarsu. Bugu da ƙari, ƙimar ci gaba ya dogara da girman - mafi girma da dabba, da sauri ya girma da shekaru.
Da ke ƙasa akwai tebur na shekarun karnuka na nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan mutum: daga shekara 1 zuwa shekaru 15.
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kiwo
| Shekarar kare | shekarun mutum | |||
| 1 | 15 | 15 | 14 | 12 |
| 2 | 23 | 29 | 28 | 28 |
| 3 | 28 | 34 | 35 | 35 |
| 4 | 32 | 38 | 40 | 45 |
| 5 | 36 | 42 | 45 | 49 |
| 6 | 40 | 47 | 50 | 56 |
| 7 | 44 | 51 | 55 | 64 |
| 8 | 48 | 56 | 61 | 71 |
| 9 | 52 | 60 | 66 | 78 |
| 10 | 56 | 65 | 72 | 86 |
| 11 | 60 | 69 | 72 | 93 |
| 12 | 64 | 74 | 82 | 101 |
| 13 | 68 | 78 | 88 | 108 |
| 14 | 72 | 78 | 88 | 108 |
| 15 | 76 | 83 | 93 | 115 |
Kamar yadda za mu iya gani, ta farkon shekara ta rayuwa, wakilan kowane nau'i za a iya la'akari da matasa, ta biyu - matasa. Daga shekara ta uku bambance-bambancen daidai da shekarun ɗan adam ya zama bayyane kuma yana ƙara ƙaruwa. Shekaru 15 ga ƙananan karnuka shine tsufa, amma ga manyan nau'o'i da giants sun riga sun tsufa.