Kuvhima Techniques uye Unyanzvi
Polar bears vane hunyanzvi hwekuita zvikara uye vakagadzira akati wandei ehunyanzvi hwekuvhima uye matekiniki akachinjirwa kunharaunda yavo yeArctic. Nzvimbo yavo huru yekudya ndeye chisimbiso, uye savakadaro, vakakudza unyanzvi hwavo mukuavhima paaizi uye mumvura.
Imwe yeunyanzvi hwayo hwekuvhima hunozivikanwa zvikuru ndeyekunyangira, umo bere rinoverevedza richienda kugomba rekufema riri muaizi rinoshandiswa nezvidhindo uye rinomirira nokushivirira kuti mhuka yairibata iuye kuti iwane mhepo. Panguva ino, bere repolar rinotanga kurwisa nekukurumidza uye kune simba, richibata chisimbiso isati yatiza. Iyi nzira inoda kushivirira kukuru uye unyanzvi.
Imwe nzira yekuvhima ndiyo kudzingirira mumvura. Pasinei nehukuru hwawo, mapere ane simba zvinoshamisa uye anogona kushamisa mhuka mumvura nekuzvifambisa mberi nemakumbo adzo ane simba. Pamusoro pezvo, kunzwa kwavo kunhuhwirira kwakanaka kunoita kuti vakwanise kuona zvisimbiso kubva kure.
Zvinhu zvinodyiwa zvakanyanya mukudya kwebere repolar
Kunyangwe ivo vachinyanya kuzivikanwa sevavharidzi, kudya kwebere repolar kwakasiyana chaizvo. Pazasi pane mamwe makuru akabatwa anogona kugadzira chikafu chamambo weArctic:
- Bearded Seals uye Ringed Seals: Aya ndiwo anonyanya kufarirwa nemapere e polar nekuda kwehuwandu hwemafuta ayo, izvo zvinovapa simba rakawanda.
- Narwhals uye belugas: Kunyange zvazvo dzisiri chikafu chakajairika, mapere epolar anomborwisa aya macetaceans paanenge akavharirwa muaizi, achiapa imwezve sosi yezvinovaka muviri.
- Hove: Kunyange zvazvo isiri chikamu chakakosha chekudya kwavo, polar bears inogonawo kudya hove dzakadai sepolar cod uye arctic salmon kana yakapiwa mukana.
- Mhuka dzegungwa nemazai: Munguva yekuberekesa, polar bears inogona kurwisa shiri dzegungwa kuti dzidye padzo nemazai adzo.
Kusiyanisa kwemwaka mukudya kwepolar bear
Kudya kwebere repolar kunogonawo kusiyana zvichienderana nenguva yegore. Munguva yechando, kana chando chegungwa chiri pamusoro, mapere ane mikana yakawanda yekuvhima zvidhindo. Munguva iyi, kudya kwebere repolar kunobva zvakanyanya pamafuta aanowana kubva muzvisimbiso.
Muchirimo, aizi yegungwa inonyunguduka uye zvisimbiso zvinova zvakaoma kubata. Mumwaka uno, mapere epolar anogona kumanikidzwa kuwedzera kudya kwavo nezvimwe zvekudya zviripo, seshiri dzegungwa, mazai, kelp, uye dzimwe nguva zvakaora. Iriwo panguva iyi apo mapere anogona kuwana nguva dzekutsanya.
Kuwana nekuchengetedza simba
Mafuta anodyiwa nemabheya epolar kubva pamhuka dzawo anoapa iwo gobvu, rakanyura sosi yesimba muchimiro chemacalorie uye chikafu. Iri simba rakakosha kuti varambe vachitonhora zvakanyanya uye kuvabvumira kuchengetedza mamwe mafuta emuviri. Munguva yechando, hadzi dzine pamuviri dzinotsamira pamafuta aya chete kuti dzirarame uye dzidyise vana vadzo.
Kana bere rakabata chisimbiso, rinowanzodya chete makushe neblubber layer, zvichisiya muviri wese kune dzimwe mhuka dzinofarira semakava nemagull. Mafuta akachengetwa anovabvumira kutsungirira nguva refu vasina zvokudya, uye kana vaine utano hwakanaka, vanogona kurarama mwedzi yakawanda vasina kudya.
Mhedzisiro yekushanduka kwemamiriro ekunze pakudya kwebheya
Kuchinja kwemamiriro ekunze injodzi huru kune nzvimbo uye kudya kwepolar bear. Kukwira kwetembiricha kuri kuita kuti aizi yegungwa inyunguduke nekukurumidza kupfuura mwero wenguva dzose, zvichiita kuti zvinyanye kuomera mapere epolar kuvhima zvisimbiso uye kudzikisira mikana yawo yekudyisa.
Somugumisiro, polar bears dzakawanda dziri kusangana nekushaya zvokudya zvinovaka muviri uye kurasikirwa nemafuta emuviri. Pamusoro pezvo, kushanduka kwemamiriro ekunze kuri kukanganisa huwandu hwezvisimbiso, izvo zvinogona kukonzera kudzikira kwehuwandu hwemhuka inowanikwa kune polar bear. Izvo zvakakosha kuti danho ritorwe kudzivirira shanduko yemamiriro ekunze uye kuchengetedza polar bear pekugara uye chikafu.