Narwhals yuav siv lawv tus ntiv tes txhawm rau ntsuas qhov ntsuas kub, dej siab, particle gradients, thiab txav. Tsis tas li ntawd, tus ncej yog hloov tau, muaj peev xwm flexing li 30 centimeters (1 ko taw) nyob rau hauv tag nrho cov lus qhia.
Pob narwhals siv lawv tus nas mus yos hav zoov?
Vim lawv cov hniav/tusk, narwhals raug suav hais tias yog "toothed whale" lossis odontocete cetacean. … Muaj kev tshawb fawb tias qhia tias tus narwhal tusk yog siv feem ntau rau kev yos hav zoov, tab sis tsis yog qhov koj xav, lawv tsis hmuv lawv cov zaub mov.
Puas cov narwhals siv lawv tusk noj?
Thawj thawj zaug, cov kws tshawb fawb tau kaw cov yeeb yaj kiab ntawm narwhals siv lawv tus ntiv tes rau yos hav zoov ntses. Cov duab qhia tau hais tias narwhals ntaus thiab stun ntses nrog lawv tus nas ua ntej noj lawv.
Nqaij ntses puas muaj sia nyob tsis muaj tus pas?
Ib yam uas meej, yog tusk tsis tuaj yeem ua haujlwm tseem ceeb rau narwhals' ciaj sia taus vim cov poj niam uas tsis muaj tus nas, tseem tswj tau lub neej ntev dua txiv neej thiab tshwm sim nyob rau tib qhov chaw thaum tseem yog lub luag hauj lwm rau kev yug me nyuam thiab calf rearing.
Pob narwhals tsoo lawv tus nas?
Tsis tas li, cov kws tshawb fawb Helen Silverman thiab MJ Dunbar tau pom tias txiv neej narwhals muaj ntau dua ntawm cov pob txha tawg thiab nti ntawm lawv lub hauv pliaj ntau dua li poj niam, qhia tias lawv koom nrog kev sib ntaus sib tua ntawm poj niam..