Shark gray-xiav: yees duab thiab piav qhia

Grey-xiav shark yog tseem lub npe hu ua lub Mako, thiab mackerel, bonito. Ib txhia hu nws chernoryloy. Nyob rau hauv tas li ntawd, qhov no hom muaj subtypes xws li dawb loj, Atlantic thiab Pacific shark.

Dlinnoplavnikovaya shark

Nyob rau hauv nruab nrab ntawm lub xeem caug xyoo nws twb tau piav los ntawm lwm yam. Qhov no shark dlinnoplavnikovaya, uas yog ib tug txheeb ze ntawm lub niaj zaus gray-xiav.

Muaj nruab nrab ntawm cov hom tsuas yog ib tug txawv - pectoral fin qauv.

Nyob rau hauv no hom ntawm fins yog ntev heev. Lawv nyob deb tshaj cov dav, uas yog heev reminiscent ntawm cov tis. Shark inhabits cov gray-xiav dlinnoplavnikovaya nyob rau hauv tib lub vaj tse nrog rau lawv cov txheeb ze. Nws yog ntseeg hais tias qhov no yog ib tug xeeb leej xeeb ntxwv ntawm ancient sharks uas tau hu ua Isurus Hastilus.

Qhov no hom ntawm allegedly muaj ib tug ntev ntawm mus txog rau meters, qhov hnyav - peb txhiab kilos. Nws yog ntseeg hais tias qhov no hom nyob rau hauv lub Cretaceous lub sij hawm.

Mako. Cwj pwm ntawm cov hom

Grey-xiav shark, Mako, cov duab uas yog hais hauv qab no, yog ib tug nruj hom. Qhov no shark yog theej yus tsis tau tsuas yog rau cov neeg uas nyob ntawm lub hiav txwv, tab sis kuj rau tib neeg zoo li. Vim hais tias nws yuav tawm tsam neeg indiscriminately rau tag nrho cov uas yuav ua tau rau lub extraction. Qhov no shark muaj ib tug yus lub qe phem cov scuba divers thiab divers. Tom qab tag nrho, qhov no zoo tsis mus los ntawm lub prey thaum lub sij hawm ib tug mus yos hav zoov thiab feem ntau tua divers. Muaj mob thaum lub shark xiav-grey thaum yos hav zoov rau cov ntses jumps mus rau hauv lub nkoj fishermen thiab txawm ua mob rau tib neeg.

Qhov no hom ntawm shark yog feem ntau nyob rau hauv lub Pacific, Atlantic thiab Indian. Preference yog muab rau cov dej ntawm lub teb chaws sov cheeb tsam, qhov chaw uas sov so thiab tsaus ntuj nti. Yog hais tias cov dej kub yog kaum degrees, qhov no shark yuav pom muaj teeb meem. Tiam sis ntau tshaj feem ntau lawv yuav caij nkoj mus rau qhov twg cov dej yog rhaub. Yog hais tias Mako tshwm sim nyob rau hauv dej txias, nws tsuas yog qhov chaw uas cov swordfish lub neej. Tom qab tag nrho, nws yog ib tug nyiam zaub mov rau sharks.

Yog vim li cas yog hu ua tus "chim"?

Qhov no predator yog sim los tuav on mus rau ib tug me me qhov tob, thiab yog hais tias mus sib sib zog nqus, nws tsuas yog 150 meters. Lwm lub npe menyuam yaus yog cov shark-tis ntses Mako - "chim." Qhov no yog vim lub fact tias nws yog ib tug heev interesting thiab ceev ceev. Vim lub elongated thiab streamlined lub cev thiab ib tug ntev muzzle nws thaum lub sij hawm yos hav zoov speeds mus txog 60 kilometers moos.

Ob peb ntawm cov tsiaj nyob rau hauv lub teb chaws, yog muaj peev xwm mus tsim xws li ib tug ceev. Tab sis nco ntsoov hais tias muaj yog kuj nyob rau hauv cov dej, uas yog tsis nyob rau hauv cov av. Thaum lub sij hawm no caum Mako shark yuav dhia tawm ntawm lub hiav txwv rau ib qhov siab ntawm rau meters. Yuav kom tsim ib tug ceev ntawm no hom tsis tau tsuas yog pab khiav lub cev, tab sis kuj muaj ib tug zoo-tsim circulatory system. Raws nraim li cov nqaij yog them los ntawm ib tug loj tus naj npawb ntawm cov hlab ntsha uas ua rau kom cov huab cua sov rau cov nqaij ntshiv thiab ntxias lawv heev txo, raws li ib tug tshwm sim nws yuav ua rau nws tau los tsim xws li ib tug zoo npaum li cas. Qhov no muaj peev xwm yog tsis nyob rau hauv tag nrho cov shark hom.

Tab sis zoo li txhua yam yuav tawm mus sai sai, nws yuav tsum tau mus rau replenish nws lub zog mov ntawm cov zaub mov. Ntawm cov hoob kawm, tus yuav tsum tau khoom noj khoom haus shark gray-xiav. Cov hom yog heev voracious thiab yog li ntawd zuj dab tsi uas tej zaum yuav siav. Thiab nyob rau hauv lub kawg vim hais tias ntawm nws mas thiab muaj siab hlob, thiab cov sharks nres tib neeg. Tej tawm tsam nyob rau hauv tus neeg twb tsis tau tsau lub sij hawm, tshwj xeeb tshaj yog rau cov neeg uas ua luam dej mus los ntawm lub ntug dej.

Shark gray-xiav. piav qhia

Lwm yam sharks, no tsiaj yog distinguished nyob rau hauv hais tias nws muaj tus duab ntawm tus Tsov tus tw tis ntses ntawm lub hlis, raws li zoo raws li luv luv fins ntawm nws hauv siab. Nraub thaum nyob rau hauv no hom sufficiently sib txawv. Cov Thawj zaug ntawm lawv yog zoo, thiab lwm yam, nyob ze tus Tsov tus tw, tsawg npaum li cas.

Qhov ntev ntawm tus neeg muaj peev xwm mus txog ib tug nruab nrab ntawm 3.5 meters. Tab sis muaj tej lub sij hawm uas yog muaj txog li plaub meters nyob rau hauv ntev thiab hnyav ntau tshaj 400 kilograms. Zoo li txhua predator, hniav cov txheej txheem ntawm nyob rau hauv ob peb kab. Lawv nyob nraum ntse raws li ib tug riam hniav thiab khoov duav me ntsis inward nyob rau hauv thiaj li yuav kom ib tug stranglehold rau lawv prey. Hniav ntawm lub tshem me me muaj peev xwm yuav pom txawm thaum lub qhov ncauj ntawm kev sib paub. Nyob rau hauv sib piv rau cov dawb shark, qhov no tuas nws cov prey, tsis torn sib nrug heev. Tus nab npawb ntawm cov hniav nyob rau hauv lub Upper thiab qis puab tsaig yog zoo tib yam.
Lub taub hau yog proportional rau hauv lub cev ntawm ntses, nws ob lub qhov muag yeej loj. Qhov ntswg sharks muaj kev tshwj xeeb receptors nyob rau hauv daim ntawv ntawm grooves. Lawv pab lub tsev lag luam ntawm ib tug sai catch tsw nyob rau hauv cov dej thiab nrhiav tau qhov chaw ntawm lawv cov prey los yog raug mob marine lub neej. Muaj ntau txhom nrhiav lawv cov zaub mov nyob rau hauv loj expanses ntawm lub hiav txwv yog ib qhov nyuaj. Tab sis qhov grey-xiav shark, Mako tiv nrog no ua hauj lwm sai sai.

Nws xim ntawm no hom ntawm predator tsa xiav. Tab sis muaj ib tug txawv nyob rau hauv lawv cov massiveness. Sab saum toj predator uas muaj ib tug xiav thiab ib tug xiav xim, thaum los ze zog mus rau lub plab tsuas yog hloov mus rau lub teeb - ib tug grey los yog dawb. Zoo li tag nrho cov cartilaginous Ruffle thiab Mako sharks muaj tsis muaj ua luam dej zais zis, yog li ntawd, tsuas yog mus, nws yog muaj nyob rau cov dej.

khoom noj khoom haus

Qhov no predator noj ntau haiv neeg, tiam sis yog koj muaj ib tug xaiv, xav loj ntses uas yuam kev mus rau hauv lub shoals. Qhov no yuav ua tau mackerel, herring, mackerel, tuna thiab lwm tus neeg. Indulge thiab kho koj tus kheej pos i hws. Yuav ntes thiab squid. Thiab yog hais tias koj yuav poob tuag whale, lub shark thiab ces gray-xiav, tus yees duab uas koj pom nyob rau hauv qhov tsab xov xwm tsis tsis kam koj tus kheej lub Library. Nws tshwm sim hais tias tus nres txawm noog hais tias ntab rau cov dej saum npoo, thiab tsis ntsws me me inhabitants ntawm marine dej. Yog li ntawd, nws yog to taub yog vim li cas nws yog ntseeg hais tias lub shark tsis pereborchivy zaub mov. Tab sis feem ntau ntawm tag nrho cov no predator nyiam noj ntses-rab ntaj, raws li tau teev saum toj no. Thiab cov neeg uas koom nyob rau hauv kev nuv ntses ua lag ua luam, paub hais tias yog qhov chaw nyob ze ua luam dej swordfish, ces kaw koj yuav saib tau lub xiav-grey shark.

Tab sis thaum ntsib los ntawm cov ob txhom, peb yuav pom tau lawv tawm tsam nyob rau hauv uas muaj zog tshaj plaws yeej ib tug yeej. Nyob rau hauv lub sib ntaus sib tua yuav poob li lub swordfish thiab shark. Tab sis vim yog nws nyiam noj txhua yam muaj sia, peb yuav hais tias tag nrho cov sharks muaj qhov zoo tshaj plaws muaj peev xwm kom ciaj sia.

tu tub tu kiv

Reproduces no zoo ntawm kev siv ovoviviparity. Qe uas tau fertilized, siab tsim nyob rau hauv lub tsev menyuam. Ces nws muab yug mus kiag li tsim me me sharks. Qhov no hom yuav noj lawv tus kheej zoo, kom ua pes tsawg, txawm nyob rau hauv lub plab tej zaum yuav muaj zog cov tub ntxhais noj cov tsis muaj zog, los yog qe, uas yog lagging qab nyob rau hauv lawv cov kev loj hlob. Raws li ib tug tshwm sim, lub teeb tshwm ib tug me me muaj pes tsawg tus ntawm cov me nyuam mos Mako sharks. Yeej, muaj txog ib tug kaum os cov. Twb tau nyob rau tus thawj feeb ntawm nws lub neej tshiab me me sharks yuav tau saib xyuas ntawm lawv tus kheej: nrhiav zaub mov noj, raws li tau zoo raws li worry txog lawv cov kev nyab xeeb. Tom qab tag nrho, cov me nyuam yog ib qho yooj yim prey rau hiav txwv ua npua. Nws tshwm sim hais tias cov niam txiv lawv tus kheej muaj peev xwm ua tawm tsam tub ntxhais hluas.

cov yeeb ncuab

Tab sis, raws li txhua leej txhua tus muaj cov yeeb ncuab thiab nyob rau hauv no predator yog creatures uas ntshai. Cov no loj swordfish (txawm hais tias lawv yog cov nyiam zaub mov ntawm lub grey-xiav shark). Tsis tas li ntawd, muaj lwm yam tsiaj, xws li loj sharks ntawm lwm hom, crocodiles, los yog killer whales, kuj muab tej txiaj ntsim uas muaj peev xwm los tsim ntau ceev thiab muaj ib tug collective nres kev txawj ntse.

"Phooj ywg"

Tab sis tseem muaj inhabitants ntawm lub hiav txwv, uas yog "cov phooj ywg" nrog no ferocious predator. Cov muaj xws li: cov pilots, ntses-sticking, ntses-nqus tsev vacuum (nws nrog lub shark thiab pab tau tshem ntawm daim tawv nqaij cab). Ntxiv rau lub shark lub cev muaj peev xwm yuav ntes tau xws cov neeg nyob raws li crustaceans kapepody. Lawv lo rau hauv predator fins. Crustaceans kapepody kuj ntxuav lub saum npoo ntawm daim tawv nqaij ntawm lub ntses.

cov lag luam tawm

Nuv ntses rau sharks yog tsis ua. Tab sis, yog hais tias koj tuaj nyob ib tug grey-xiav porbeagle nyob rau hauv lub network, nws yuav tsis cia mus. Tom qab tag nrho, nws yog heev six nqaij thiab tseem ceeb, tshwj xeeb tshaj yog thaum nws koom rau hauv lub fins thiab daim siab.

txaus ntshai predator

Lossis loj txaus siab nyob rau hauv no hom ntawm hu los ntawm cov fishermen-sportsmen. Txij li thaum ntawm txais cov shark hom sib ntaus sib tua rau nws lub neej kom txog thaum kawg rog. Qhov no yuav qhia ncaws pob ib tug lossis loj npaum li cas ntawm tus cwj pwm txawv thiab muaj peev xwm los sib tw nrog nyaum predator.

Tab sis nrog xws li creatures yeej ib txwm yuav tsum tau ceev faj. Tom qab tag nrho, lawv yog ib tug txaus ntshai txawm tias thaum lawv muaj nyob rau hauv av. Thaum thauj cov ntses behaves ib qho yooj yim, tab sis thaum nws ib tug neeg los zoo txaus, ceev ceev zog nws yuav pauj lawv tus kheej. Piv txwv li, tsis pub ib tug neeg ntawm ib qho ntawm lub nqua los yog txawm tua.

Muaj mob thaum qhov no zoo ntawm shark ua luam dej nyob ze rau ntug dej thiab rov cov swimmers neeg. Tam sim no ib tug luv luv piav. Ib tug cov ntaub ntawv nyob qhov twg Mako shark tuaj heev ze rau lub puam thiab ua luam dej mus rau ib tug tob ntawm tsuas yog ib lub 'meter'. Nyob rau hauv cov ntaub ntawv no, yog ib lub rescuers sim tua ib tug tshwj xeeb phom nrog ib tug rab hmuv vos. Tab sis lub shark twb tso tawm thiab dhia tim ntug dej rau noj kua zaub ntsuab rau tus uas tsim txom.