Yog tsis muaj lawv, tab sis yog tsis muaj ob txhais tes: ua li cas yuav tsum tau tusks walrus?

Walruses yog cov coob pinnipeds ntawm lub sab qaum teb hemisphere ntawm peb ntiaj chaw. Lawv superiority tsuas cam tus ntxhw cov ntsaws ruaj ruaj, nyob rau hauv lub yav qab teb hemisphere. Ib tug txawv feature ntawm cov tsiaj yog, ntawm chav kawm, lawv yog ntev heev fangs, nws thiaj li txia ntshis ua tusks. Yuav ua li cas yog cov tusks ntawm walruses? Peb yuav sim teb lo lus nug no nyob rau hauv no tsab xov xwm.

Leej twg yog cov walrus?

Lawv yog cov neeg sawv cev ntawm ib tug hauv chav kawm ntawv ntawm cov tsiaj uas nyob hauv lub seas ntawm lub Arctic, uas yog cov tsuas niaj hnub hom teej tug mus rau lub tsev neeg ntawm tib lub npe - walrus. Systematically walruses yog ib pab pawg neeg ntawm pinnipeds. Cov neeg laus yog yooj yim coj los ntawm lawv txoj kev ntev tusks. Nws yog ib tug yuam kev kom ntseeg tau tias nws yog - nws tus kheej-fangs. Qhov no yog tsis muaj tseeb nkaus, vim hais tias cov sab sauv walrus kaus hniav tau hloov tsis tau tsuas yog nws cov zoo tshaj lub sij hawm, tab sis kuj cov destiny: nws yog ib tug tiag tiag kaus hniav. Tab sis peb yuav tham txog yav tom ntej.

Hauj lwm ntawm hom

Ua ntej piav dab tsi uas yuav tsum tau tusks ntawm walruses, koj yuav tsum xav txog qhov no hom ntawm pinnipeds heavyweights nthuav dav. Walruses - ib tug loj marine pinnipeds tsiaj nrog ib tug es tuab daim tawv nqaij, them nrog luv luv daj-xim av cov plaub hau. Nws thickness yuav tej zaum kuj tshaj 5 centimeters. Nrog lub hnub nyoog cov plaub hau poob. Cov laus daim tawv nqaij yog yuav luag hairless tsiaj. Nyob rau hauv daim tawv nqaij cia li saum toj no lub nplooj pu yog ob outgrowth. Hauv qab kom muab zais thiaj li hu ua cov hnab cua. Walruses sau lawv nrog huab cua, uas lawv mus pw tsaug zog nyob rau hauv cov dej saum npoo.

Tus neeg laus txiv neej lub cev ntev tej zaum yuav ntau tshaj 4 meters, thaum lawv nyiaj pab ntau tshaj qhov hnyav - 2 tons. Raws li hais saum toj no, cov qaum canines nws thiaj li tig mus rau hauv ib tug zoo-tsim tusks. Lawv yuag tag nrho yog 12 kilograms. Qhov ntev ntawm txhua mammoth hlob mus rau 1 'meter'. Walrus (yees duab nyob rau hauv no tsab xov xwm) muaj ib tug ncaj sab ntsej muag, hlua nrog ntau ntawm tuab thiab txhav twg, li ib tug mustache (whiskers). Nyob rau hauv cov tsiaj txhu, muaj tsis muaj lwm lub nruab nrog lub rooj sib hais, thiab ob lub qhov muag me me thiab tsis muaj zog-sighted.

Faib hom

Walruses - raug Arctic neeg. Piv txwv li, lub Pacific subspecies yog pom nyob rau hauv ntiav dej nyob rau hauv lub Chukchi thiab East Siberian seas. Raws li zaum, qhov niaj hnub nyob ntawm Pacific walrus yog tsis ntau tshaj 200 000 cov neeg. Tus tsov ntxhuav feem ntawm lawv yog nyob tsis tau tsuas yog nyob rau hauv lub Chukchi thiab East Siberian seas, tab sis kuj nyob ze ntawm lub Wrangel Island, nyob rau hauv lub Beaufort hiav txwv. Nyob rau hauv lub caij ntuj sov, koj muaj peev xwm saib cov walruses nyob rau hauv lub Anadyr thiab cov Bristol Channel.

Tu siab, lub Atlantic walrus subspecies twb yuav luag puas tsuaj mus raws li ib tug tshwm sim ntawm coj mus muag nuv ntses, uas nyob rau ib lub sij hawm uas tsis yog tswj los ntawm cov tub ceev xwm. Cov pejxeem ntawm no subspecies ntawm pinnipeds yog tsis tam sim no tshaj 000 cov neeg thiab 20. Faib Atlantic walrus rau Arctic Canada, Spitsbergen thiab Greenland rau lub sab hnub poob cheeb tsam ntawm lub Lavxias teb sab Arctic.

walrus tusks

Tusks yog cov feem ntau cov yam ntxwv feature ntawm tag nrho cov neeg laus walruses. Raws li kuv hais saum toj no, thaum nws muaj fangs, uas nws thiaj li lengthened thiab hloov mus rau hauv tusks. Lawv yog cov ob leeg nyob rau txivneej thiab cov pojniam. Cov tusks loj hlob thoob plaws hauv tus tsiaj lub neej, lossi tshiab. Yuav ua li cas yog cov tusks ntawm walruses? Ntawm cov hoob kawm, rau qhov fights rau kev dominance, mus nrhiav zaub mov ... thiab tsis xwb! Xav txog lo lus nug no nyob rau hauv ntau yam.

Yog vim li cas walrus tusks?

Tusks - ib tug universal lub cuab tam ntawm walruses. Lawv yog siv raws li ib tug dej khov taus, tsis muaj uas nws yog tsis yooj yim sua tsiv mus nyob rau slippery dej khov, thiab raws li ib yam ntawm cov hniav, uas walruses tshem lub plhaub ntawm lub hiav txwv hauv qab, thiab raws li ib tug yug mus rau lub heavy lub taub hau, thiab txawm raws li ib tug cov riam phom yuav tsum tau sib ntaus sib tua nrog rivals thiab cov yeeb ncuab (polar bears). Nyob rau hauv tas li ntawd, cov tusks pinnipeds heavyweights lawv tua loj prey. Nyob rau hauv lub kawg, qhov no zoo ntawm yus kos npe rau walrus: ib haib fangs, nws yog nyob rau hauv them nyiaj!

Raws li koj tau pom, muaj ntau ntau yam lus qhia rau dab tsi yog yuav tsum tau tusks walrus. Zaum hais tias, txawm tag nrho cov saum toj no zoo tusks, lawv lub ntsiab lub luag hauj lwm - kev. Qhov tseeb hais tias qhov ntev thiab muaj hwj chim loj fangs hais tsim nyog kev sib raug zoo raws li txoj cai ntawm no los yog tias ib tug neeg: nyob rau hauv tej sib sau ua ke ntawm walruses thawj coj thiab tus thawj coj yog precisely cov neeg uas canines yuav saib visually ntau haib thiab ntev tshaj li lwm yam.

Yog hais tias, piv txwv li, lub hom txiv neej mam li nco dheev tau ntsib nws kinsman nrog raws nraim tib yam ntev, thiab loj canines sib ntaus sib tua yuav zam tsis! Tsis yeej ib txwm zoo li no fights ua rau tus tuag ntawm ib tug tsis muaj zog tus nrog sib ntaus, nws yog ib feem ntau yog ib tug ntawm cov walruses tawm hauv lub battlefield. Zaum nco ntsoov tias cov kev insignia walruses, feeb meej nyob rau hauv nws cov fangs, yog tsis yog tas rau cov dominance ntawm cov tsiaj. Daim ntawv tusks thiab lawv ntau thiab tsawg pab kuj qhia tias cov uas muaj hnub nyoog thiab pw ua ke lastonogo.

Yog vim li cas walrus tusks tsis tau? Tua tsiaj, ntawm chav kawm! Nws yog tsis yooj yim sua tsis kom nco ntsoov yuav ua li cas walruses siv lawv tusks ntev heev mus khwv tau lawv ua neej nyob. Tsiaj dives sib sib zog nqus mus rau hauv lub hiav txwv, ua rau nws mus rau hauv qab thiab muaj twb siv lawv tusks pib prowl nyob rau hauv kev tshawb fawb ntawm cov zaub mov: oysters, zoo li, qwj nplais thiab lwm yam shellfish. Walrus tusks excavating lub seabed thiab stringing tus neeg nyob rau hauv nws kaus hniav li ib daim nqaij ntawm ib tug skewer!