Video: Nyuj muaj hniav zoo li cas?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov nyuj muaj peb caug-ob tug hniav, suav nrog rau cov hniav los yog tom cov hniav thiab ob tug canines nyob rau hauv pem hauv ntej ntawm lub puab tsaig hauv qab. Cov hniav canine tsis taw tab sis zoo li cov hniav . Cov incisor cov hniav ntsib nrog cov tawv tawv tawv pad ntawm lub puab tsaig sab sauv.
Tsis tas li ntawd, tus nyuj muaj pes tsawg tus hniav?
32 zuv
Tseem Paub, dab tsov muaj dab tsi ntawm cov hniav? Tsov muaj peb hom hniav:
- Incisors, cov hniav me tshaj plaws nyob rau pem hauv ntej ntawm lub qhov ncauj, yog siv los tuav thiab rhuav cov nqaij.
- Canines, plaub tus hniav loj tshaj plaws (ob sab ntawm tus hniav), tuaj yeem ncav cuag li 7 centimeters ntev.
Kuj nug tias, cov hniav ntawm tus tsov ntxhuav txawv li cas ntawm cov hniav ntawm tus nyuj?
Lions yog carnivores - lawv tsuas noj nqaij. Lawv loj, ntse cov hniav tau tsim los kom tua tsiaj thiab noj nqaij. Nyuj Ntawm qhov tod tes, yog herbivores - lawv tsuas yog noj cov nroj tsuag.
Cov nyuj puas poob hniav?
Nyuj thawj txhim kho 20 ib ntus cov hniav , tseem hu ua deciduous, mis nyuj, los yog me nyuam mos cov hniav . Cov no ib ntus cov hniav thaum kawg poob tawm thiab hloov nrog 32 mus tas li lossis laus cov hniav raws li ib tug tsiaj matures.
Pom zoo:
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