Video: Puas yog narwhal tuskob hniav?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov ua tsaug (Monodon monoceros), lossis narwhale, yog cov ntses me me uas muaj hniav loj uas muaj qhov loj " tus tus "los ntawm tus hma tawm hniav . Nws nyob ib xyoos puag ncig hauv Dej Arctic ncig Greenland, Canada, thiab Russia. Nws yog ib ntawm ob hom tsiaj nyob hauv tsev neeg Monodontidae, nrog rau cov ntses beluga.
Ntawm no, tus narwhal ua dab tsi nrog nws tuskws?
Tsiaj qus cov narwhals siv lawv cov leeg mus yos ntses, ntaus thiab zoo nkauj heev cov prey rau ua lub ntses yooj yim dua. Tusus yeej yog tus hniav uas tawm ntawm cov puab tsaig ntawm tus txiv neej cov narwhals , thiab tuaj yeem txuas ntxiv mus txog 10 feet (3 meters) ntev, raws li cov World Wildlife Fund (WWF) Canada.
Ib yam nkaus, puas yog tus hniav tus hniav? Tusks yog elongated, tsis tu ncua loj hlob pem hauv ntej cov hniav , feem ntau tab sis tsis tas li hauv khub, uas nthuav tawm zoo dhau lub qhov ncauj ntawm qee hom tsiaj txhu. Lawv feem ntau yog dev cov hniav , zoo li warthogs, npua, thiab walruses, lossis, nyob rau hauv cov ntaub ntawv ntawm ntxhw, elongated incisors.
Tib neeg tseem nug, dab tsi yog tus nab narwhal ua los ntawm?
Hauv cov txiv neej, cov hniav loj dua tuaj rau hauv qhov zoo li rab ntaj, muab kauv tus tus mus txog 8.8 ko taw ntev. Cov kaus ntxhw tus tus hniav hlob txoj cai los ntawm cov narwhal daim di ncauj sab saud
Kuv puas tuaj yeem yuav tus nas narwhal?
Narwhals tau yog hom tsiaj muaj kev tiv thaiv txij li xyoo 1972 thiab txwv tsis pub nkag los. Peb muaj kev xaiv qub tus tus kev muag khoom uas tau xa tuaj thaum ib nrab xyoo 1900s thiab raug cai muag nyob txhua qhov chaw hauv Asmeskas (tshwj tsis yog New Jersey). Cov no tsis tshua muaj neeg tsawg yog tias koj tau nrhiav ib.
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