Narwhals siv lawv lub hneev rau dab tsi?

Cov txheej txheem:

Narwhals siv lawv lub hneev rau dab tsi?
Narwhals siv lawv lub hneev rau dab tsi?

Video: Narwhals siv lawv lub hneev rau dab tsi?

Video: Narwhals siv lawv lub hneev rau dab tsi?
Video: UW/FHCRC China Health Initiative: Research and Training - Dr. Tuofu Zhu 2024, Hlis ntuj nqeg
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Martin Nweeia qhov kev tshawb nrhiav, ua ke nrog Inuit kev soj ntsuam thiab kev paub ib txwm muaj, tau qhia tias tus tusk yuav yog lub cev muaj lub siab xav. Narwhals tuaj yeem siv lawv tus ntiv tes txhawm rau ntsuas qhov ntsuas kub, dej siab, particle gradients, thiab txav.

Dab tsi yog lub ntsiab lus ntawm lub horn narwhal?

Tus hneev yog tiag tiag a canine pem hauv ntej hniav uas tuaj yeem ncav cuag li cuaj tawTab sis txog rau tam sim no cov kws tshawb fawb tsis paub meej tias yog dab tsi, yog tias muaj, lub hom phiaj nws muaj. Kev tshawb fawb tau taw qhia ntau qhov ua tau, tawm tswv yim tias tus nas yog siv los ua lub cev hnov tsw, pab cov narwhal tuaj yeem hloov pauv hauv nws ib puag ncig.

Narwhal siv lawv tusk rau dab tsi?

Cov txiaj ntsig, uas tau tshaj tawm hnub Tuesday hauv phau ntawv Journal Biology Letters, muab "cov pov thawj muaj zog tshaj plaws rau hnub tim" tias narwhal tusks yog cov cim kev sib deev siv los ua kom ntshai cov txiv neej sib tw thiab nyiam poj niam, txoj kev tshawb fawb tau hais.

Pob narwhals siv lawv lub hneev ua riam phom?

Ib txhia hais tias hneev yog siv hmuv zaub mov. Lwm tus xav tias nws yog acoustic sojntsuam rau kev kuaj lub suab, ntsuas kub, lossis lub cev ua pa. Tseem, lwm tus hais tias nws yog riam phom siv rau kev sib ntaus sib tua tawm tsam lwm tus narwhals lossis tiv thaiv cov tsiaj tua.

Pob narwhals tua nrog lawv horns?

Cov kws tshawb fawb Canada tau sau tseg thawj zaug narwhal siv lawv cov kaus mom majestic ua lub cuab yeej rau kev yos hav zoov - clubbing Arctic cod kom stun lawv ib pliag thaum lawv nkag mus tua… Narwhal yog ib qho ntawm cov tsiaj nyaum tshaj plaws thiab cov dab neeg uas hu ua lub ntiaj teb no lub tsev.

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