Ngokwesihlukaniso se-zoological, ama-walrus angawomndeni we-walrus kanye nokulandelana kwama-pinnipeds. Okusho ukuthi, inezicucu esikhundleni semilenze. Izihlobo ezikude zama-walruse ziyizimpawu zamanzi, ezifane kakhulu ngokubukeka. Isikhathi eside, wonke ama-pinnipeds abhekwa njengento eyodwa, kepha ngokwemibono yesimanje, kuphela izindikimba ze-eyred ezihlobene nama-walruse, futhi izimpawu zangempela ezingelayini ohluke ngokuphelele.
Ividiyo: Walrus
Eqinisweni, zombili lezo kanye nezinye izikhonkwane zivela kokhokho abahlukahlukene, futhi ukwakheka okufanayo komzimba nezingalo kuchazwa yizimo ezifanayo zokuphila. Imigqa yezimpawu zamanzi ezisekiwe kanye nama-walrus aphambukisa eminyakeni engaba yizigidi ezingama-28 edlule. Ama-Walrus ngokwawo ngesimo sawo samanje abumba eminyakeni ecishe ibe yizigidi eziyi-5-8 futhi ahlala esifundeni sePacific. Bahlala amanzi e-Arctic iminyaka engaba yisigidi.
Izindlela ezintathu ezihlukene zokubhalwa kwama-walrus ezinobubanzi obungalingani, futhi umehluko omncane ngokubukeka, ziyahluka:
- I-Pacific walrus,
- I-Atlantic walrus,
- Laptev walrus.
Yize, ngokwemiphumela yocwaningo lwe-DNA kanye nokutadisha idatha ye-morphometric, ososayensi baqala ukukholelwa ukuthi kufanele senqabe ukubheka okubhalwe phansi kwe-Laptev walrus njengezimele. Naphezu kokuhlukaniswa kobubanzi balezi zingilazi, kungabhekwa inani labantu asentshonalanga ngokwedlulele bezinsizakusebenza zasePacific.
Ukubukeka nezimpawu
Isithombe: Isilwane seWalrus
Umzimba we-walrus mkhulu kakhulu futhi mkhulu kakhulu. Ubude bomuntu osemdala bufika enanini lamamitha amane kuya kwayi-5, futhi isisindo somzimba singafinyelela ithoni eyodwa nengxenye. Abesifazane bancane. Ikhanda le-walrus lincane kakhulu uma liqhathaniswa nomzimba walo, ngakho-ke kubukeka sengathi liyaphuma kancane entanyeni yalo enamandla.
Isizalo sesilwane sihlala ngezinsimbi eziningi ezisindayo neziqinile, zine-vibrissa whiskers, ukushuba kwazo kungafinyelela kumamitha angama-1 noma ama-2 kanye nobude obungamasentimitha ayi-15 kuye kwangama-20. UVibrissae ebusweni besilwane ufana nebhulashi ekubonakaleni kwawo. Zisetshenziswa ama-walrus lapho efuna ama-mollus angaphansi kwamanzi nalapho uzulazula ngaphansi, ngoba ekujuleni okukhulu ngaphansi kweqhwa, akukho ukukhanya okwanele, futhi umbono uqala ukudlala indima yesibili.
Ama-Walruse anama-canine aphezulu, athuthukiswe kakhulu, amade kakhulu futhi aqondiswe kude ngaphaya komhlathi. Babizwa ngokuthi ama-tusks. Badonsa phansi ezansi, bezama ukumba imollusks efihlwe esihlabathini nakwezinye izilwane. Lapho uqhubekela ezintabeni zeqhwa, ama-walrus angasebenzisa ama-tusks njengethuluzi elisizayo lokuzibandakanya. Kepha kufanele sikhumbule ukuthi lokhu akuyona inhloso yabo eyinhloko. Kwesinye isikhathi ama-tiles ayalimala, bese ama-walrus ayalahlekelwa. Ikakhulu kaningi lokhu kwenzeka ekuthunjweni, ngenxa yaphansi kokhonkolo onzima ezindizeni.
Iqiniso elithandekayo: ama -ksks angafinyelela imitha ubude, futhi abe nesisindo aze afike ku-5 kg. Imvamisa kusetshenziselwa izimpi, ngakho-ke owesilisa onamandla amakhulu ubusa kakhulu.
Isikhumba esikhulu kakhulu sesilwane simbozwe ngokuphelele izinwele ezimfushane eziseduze zombala ophuzi onsundu. Kepha ngokuguga, izinwele emzimbeni ziba zincane, futhi lapho izimbambo zindala zindala isikhumba sivele sibe nqunu ngokuphelele. Isikhumba ngokwaso simnyama ngombala.
Izingalo ze-walrus, njengamanye ama-pinnipeds, ziyizicucu. Kepha zivumelaniswa kakhulu nokuhamba emhlabeni, ngokungafani nezimpawu. Ngakho-ke, ama-walruses angahamba emhlabeni kunokuba akhasa njengamanye ama-pinnipeds. Izinyawo zibizwa zingasho lutho. Emhlabeni, ama-walruses agcwele ukugcwala, ahamba nobunzima. Kepha bangabhukuda abahle kakhulu futhi bazizwa bekhululekile emanzini.
Ihlala kuphi i-walrus?
Isithombe: Ulwandle Walrus
Ama-Walrus ahlala ogwini loLwandle i-Arctic azungeze iNorth Pole. Ububanzi bawo buyi-circumpolar. Ungahlangana nezilwane ezisogwini olusenyakatho yeYurophu, e-Asia, kanye nasemanzini asogwini aseNyakatho Melika naseziqhingini eziningi ze-Arctic. Kodwa ngokungafani nezimpawu zasolwandle, ama-walruse agwema zombili izikhala zamanzi ezivulekile futhi apakishe iqhwa, ngakho-ke azama ukuhlala eduze nolwandle.
Ngokuvamile, ama-walruses akhetha ukuhlala lapho ukujula kuya phansi kungaphezulu kwamamitha ayikhulu. Njengoba iningi lokudla kwabo liqukethe izidalwa eziphilayo ezingaphansi, okuncane lapho kufanele ushayele khona futhi usebenzise amandla, kuba lula kakhulu ezilwaneni. Kepha ngasikhathi sinye, cishe noma iyiphi i-walrus iyakwazi ukungena ekujuleni okufika kumamitha ayi-150-200.
Iqiniso elihehayo: ama-walruses anganciphisa izinga lokushaya kwenhliziyo yawo ngesikhathi sokumba. Ingqimba enkulu yamafutha angaphansi, okuyi-insulin enhle yokushisa, iyabasiza ukuba babekezelele amazinga okushisa aphansi wamanzi.
Izilwane zinokufuduka kwesizini, kodwa zimfushane kakhulu. Ebusika, ama-walrus popu athuthela eningizimu, kodwa amakhilomitha ayi-100-200 kuphela. Kwezilwane ezinkulu kangako, lokhu kuncane kakhulu.
Inani elikhulu kunawo wonke ama-walrus ahlala eNhlonhlo YaseChukchi, kuwo womabili amabhange eBering Strait, futhi amakoloni amaningi nawo ahlala eNhlonhlo yeLabrador. Ama-walruse angaphansi atholakala ezingxenyeni ezisentshonalanga nasenkabeni yogu lwase-Esasia. Eduze naseGreenland naseSvalbard, abamele izinhlangano ezingaphansi kwe-Atlantic bahlala.
Lawa ma-walruses nawo atholakala engxenyeni esentshonalanga ye-Russian Arctic. Inani labantu bodwa beLaptev walrus litholakala endaweni ephakathi nendawo nasentshonalanga yoLwandle Laptev. Lokhu okubhaliselwe okuncane kunakho konke.
Ngabe udliwa yini ama-walrus?
Isithombe: i-Atlantic walrus
Iningi le-walrus rations izimbotshana nezinye i-benthic invertebrates, ezivunwa ekujuleni kwamamitha angama-50-80.
Ukudla kungasebenza futhi:
- Ezinye izinhlobo zama-lobster
- Shrimp
- Izibungu zePolychaete.
Ngokuvamile, ama-walrus adla ama-octopus nama-holothuri. Ezimweni ezimbi kakhulu, ezinye izinhlobo zezinhlanzi ziyondliwa, yize ama-walrus ngokuvamile enganaki izinhlanzi. Ama-Walruses futhi angadla ezinye izikhonkwane, ngokwesibonelo, ngemidumba ecijile noma uphawu olunamakhonkco, kepha lokhu kuyivelakancane kakhulu ezimweni ezihlukile lapho kungekho kudla okwanele komuntu wonke. Kuhlaselwa umuntu ngamunye kuphela, ngakho-ke asikho isidingo sokukhuluma ngesimo esikhulu sokudla ezinye izilwane. Ezimweni ezingavamile kakhulu, ama-walrus angahlasela izinyoni ezifika emhlabeni.
Ngokwesilinganiso, ukuthola okwanele, i-walrus endala kufanele idle kuze kufike ku-50 kg we -fishfish noma okunye ukudla ngosuku. Ukukhiqizwa kokudla kungokulandelayo. Okokuqala, i-walrus ifhoboza imishayo yayo enamandla ngaphansi kwesihlabathi noma udaka, "iyalima" bese isusa amagobolondo lapho. Igobolondo lazo lihlanzwa ukushukunyiswa okukhulu kwamawele, ingaphezulu lawo ligotshwe izingcingo eziningi ezilukhuni, kudliwe nenyama. Ngendlela efanayo, ukukhishwa kwezikelemu kanye nama-crustaceans kwenzeka. Ama-walruse abo empeleni akhukhuleke kusuka phansi ukuze adle. Ukudla kuseshwa kusetshenziswa i-vibrissae etholakala ebusweni besilwane.
Izici zobuntu nendlela yokuphila
Isithombe: Incwadi Ebomvu yeWalrus
Ama-Walrus ayizilwane zomhlambi. Imvamisa usayizi womhlambi ngamunye uvela kuma-walruse angama-20 kuye kwangama-30, kepha kwamanye ama-rookeries amakhulu kanye nezinkulungwane zezilwane ziyahlangana. Umhlambi ngamunye ubuswa owesilisa onamandla futhi omkhulu kunabo bonke. Abanye bonke ngezikhathi ezithile bahlela izinto naye futhi bazame ukuthatha isihloko. Isihloko sengxoxo mpikiswano cishe njalo singabantu besifazane.
Emhlambini, izilwane zivame ukuqamba amanga komunye nomunye, ngenxa yendawo enomkhawulo noma iqhwa. Imvamisa kufanele ulale ngohlangothi lwakho, kwesinye isikhathi uphumule ikhanda lakho ku-walrus engomakhelwane. Futhi uma kunesikhala esincane kakhulu, khona-ke bangalala ezingqekweni ezimbili. Yonke i-rookery ihlala "ihamba": ezinye izilwane zingena emanzini ziyodla noma zipholile, kanti amanye ama-walruse ngokushesha abuyela endaweni yawo ukuyolala.
Iqiniso elihehayo: emaphethelweni ama-walrus rookeries cishe kunezihambi ezithi njalo, lapho zibona ingozi, ziqwashise bonke abanye ngokubanga okukhulu. Ngemuva kwesiginali enjalo, wonke umhlambi ugijimela emanzini ube munye.
Ngokuhlobene nezinye izilwane kanye nomunye, ama-walruses anokuthula futhi anobungane kakhulu. Phakathi kokunye, ama-walruse abesifazane anomqondo wokukhula komama othuthuke kakhulu, ngakho-ke avikela lawo mazinyane asengozini, futhi awanakeki nje kuphela enzalweni yawo, kodwa nakwamanye amawundlu. Futhi zinokuxhumana okuhle. Noma iyiphi i-walrus endala emhlanjini ivumela noma yiliphi iwundlu ukuthi likhuphukele emhlane wakhe alale lapho ukuze aphumule.
Isakhiwo senhlalo nokuzala
Isithombe: Walrus Cub
Ama-Walrus ayizilwane ezinokuthula nokuzola impela, kepha ngesikhathi sokuzala, esenzeka ngasekupheleni kuka-Ephreli noma ekuqaleni kukaMeyi, abesilisa bavame ukulwa nabesifazane. Empini, basebenzisa imisindo yabo enamandla, kepha ungashiyi ukuhlulwa okunamandla emzimbeni womphikisi. Ama-Walrus anesikhumba esikhulu kakhulu kanye nohlu lwamafutha anamandla okuvimbela ukulimala kabi kwezitho zangaphakathi.
Ekupheleni kuka-Ephreli, inani elikhulu kakhulu lesidoda esivuthiwe liziqongelela kuma-walrus wesilisa, futhi lilungele ukufaka umquba kowesifazane. Abesifazane, nabo, bakulungele ukufaka umquba ngalesi sikhathi, futhi maphakathi nenyanga kaMeyi baqala ukukhulisa i-corpus luteum yokukhulelwa.
Ngemuva kokuphola, wonke ama-walruse aqhubeka nempilo yawo ethule emhlambini wazo. Abesifazane abakhulelwe bazaletha inzalo yabo ngonyaka. Ukuphela kwengane izalwa njalo. Isisindo saso sifinyelela ku-60-70 kg, ubude obu malunga nemitha. I-walrus encane ikwazi ukubhukuda emanzini kusukela izalwa, lokhu kuyamsiza ukuthi akwazi ukusinda uma kwenzeka kuba nengozi, futhi iwele ngemuva kukanina.
Isikhathi sokuqunjelwa ku-walruses isikhathi eside kakhulu - sifinyelela eminyakeni emibili. Ngakho-ke, ama-walruses azalela kanye kuphela njalo eminyakeni engama-4-5. Owesifazane angakhulelwa kaningi kuphela uma iwundlu langaphambili life. Lapho amakhula amakhulu amakhulu akhula kuma-walruses asemancane, ukuphuma komzimba kuyaphela bese isilwane sishintshela ekuzondleni. Abesilisa bavuthwa ngokocansi ngeminyaka eyisithupha kuya kweziyisikhombisa ubudala, abesifazane ngaphambi kwalokho.
Amakhulu aqhubeka nokuphila ngaphakathi komhlambi owodwa nabazali bawo, kodwa njengabantu abazimele.
Izitha zemvelo ze-walruses
Isithombe: Walruses Russia
Ama-Walrus makhulu futhi aqine kakhulu, ngakho bambalwa kakhulu abantu abangabalimaza. Kwezilwane zasemhlabeni, yi-polar kuphela ebeka ubungozi ekuhlaseleni ama-walrus, futhi uyenza ngendlela ethile. Ibhere liqapha i-walrus emaphethelweni eqhwa noma ngaphansi kwendawo egcwele iqhwa, lapho kuzovela khona i-walrus.
Kungaleso sikhathi sokudonswa ngamandla ukuthi ibhere limshaye, ukuze akwazi ukuqhubeka nokubhekana nesidumbu. Okusho ukuthi, uma engabulali noma egawula i-walrus ngokushaya okukodwa, i-walrus izomelana nayo. Empini phakathi kwe-walrus kanye nebhere, owesibili angathola ukulimala okungathi sína emathanjeni esiqhwaga sasolwandle.
Amabhere ezinsana ezisanda kuzalwa futhi elincane labantu abangama-walrus nawo ayingozi kakhulu. Amabhere angabahlasela ngqo emhlabeni, eqhweni. Izingane azikwazi ukuhlinzeka ngokumelana okuqinile futhi esikhathini esiningi zifela ngokuxhaxha kwabazingeli.
Kunamacala aziwayo okuhlaselwa kwama-walrus we-killer whale. Zicishe zibe kathathu ubukhulu kune-walruses, futhi zinzima kane kunezazi, ngakho-ke ama-walrus awakwazi ukuzivikela emikhombeni ebulala. Ukwazi ukuphunyula kuphela uma efika emhlabeni. Amasu wokuzingela imikhakha yokubulala ahlala efana. Bazihlukanisa zibe ngumhlambi we-walrus, bahlukanise, bese bezungeza umuntu ohlukile futhi bahlasele.
Isitha esikhulu se-walruses umuntu. Ngenxa yenyama, amanoni, isikhumba nama-tusks, abantu babevame ukuzingela ama-walrus. Ngemuva kokubulala i-walrus eyodwa, ungondla umndeni wakho izinyanga ezimbalwa, ama-walrus amaningi afile ezandleni zomuntu. Kepha hhayi indlala kuphela ephoqa abantu ukuthi babulale lezi zilwane ezinokuthula, bayalawulwa nayinjabulo yokuzingela.
Ngeshwa-ke, ama-walrus amaningi kangaka afa ngaphandle kwesizathu. Zizala kancane, futhi isibalo sama-walruse sehlile kakhulu. Ukuze ukwandise, kuzodingeka inani elikhulu lesikhathi, futhi, noma yini umuntu angayisho, le nqubo ayikwazi ukusheshiswa.
Isimo sabantu kanye nezinhlobo zezinhlobo
Isithombe: Isilwane seWalrus
Akukho mininingwane eqondile ngenani lama-walrus namuhla. Ngokwezibalo ezingezinhle, inani labamele izinkampani ezingaphansi kwePacific okungenani abantu abayizinkulungwane ezingama-200. Inani le-Atlantic walrus lingumyalo wobukhulu obuphansi - kusuka ezilwaneni ezingama-20 kuye kwezingama-25, ngakho-ke lokhu kucatshangelwa kubhekwa njengokusongelwa. Inani elincane kakhulu labantu baseLaptev. Ama-walruse anjalo namuhla aqala ezinkulungwaneni ezinhlanu kuya kweziyi-10.
Umthelela omkhulu enanini labantu walezi zilwane awenziwa nje kuphela yimisebenzi yabantu, kodwa futhi nokushintsha kwesimo sezulu emhlabeni jikelele. Ikakhulu, kukhona ukwehla kwezinga le-pack ice nobukhulu balo. Okungukuthi, kuleli qhwa, ama-walrus akha ama-rookeries awo okuzala nokuzala kwengane ngesikhathi sokuzala.
Kukholelwa ukuthi ngenxa yezinguquko zesimo sezulu kube nokwehla kwezindawo zokuphumula ezifanele zama-walrus eduze nendawo yazo yokudla eyanele. Ngenxa yalokhu, izinsikazi ziyaphoqeleka ukuba zingabi bikho isikhathi eside lapho zifuna ukudla, futhi lokhu kuthinta nokuphakelwa kwamawundlu.
Ngenxa yokuncipha kwenani lama-walrus, ukukhiqiza kwawo okuthengiswayo okwamanje kungavunyelwe ngumthetho kuwo wonke amazwe. Ngokwezinga elithile, ukudoba kuvunyelwe kuphela kubantu bomdabu nabomdabu, obukhona babo buhlobene nomlando nokuvunwa kwe-walrus.
Ukuvikelwa kwe-Walrus
Isithombe: Incwadi Ebomvu yeWalrus
Ama-subspecies e-Atlantic walrus kanye neLaptev ahlala emanzini aseRussia abhalwe ku-Red Book of Russia. Izitolo zabo ezisogwini zivikelwe, futhi ukudoba bekungavunyelwe kusukela kumashumi amahlanu wekhulu le-XX. Izindawo ezingama-Rookery sekuthiwe zingama-savings, futhi umsebenzi wezimboni ezindaweni zawo uyancishiswa. Kodwa ngaphandle kwalokhu, azikho izindlela ezikhethekile nezingeziwe zokuvikela ama-walruse kuze kube manje zisebenze ngokuningiliziwe.
Ngemizamo ehlanganyelwe yamanye amazwe, kungenzeka ukwandisa ukukhula kwemvelo kwama-walruses. Ngokwesilinganiso, manje sekungu-14%, okuyisilinganiso esingu-1% kunokufa kwalezi zilwane. Kanye nezenzo esezithathiwe, kungakuhle futhi ukuthi uhlele izifundo zezindawo zokuhlala futhi ubheke ngokucophelela izinamba njalo.
Kukhona umcabango wokuthi ukuze kugcinwe inani labantu, kunengqondo ukuvikela hhayi kangako ama-walruse ngokwawo njengezilwane azondla ngazo. Kepha lesi ngesinye sezinyathelo ezingaba khona. Kukhona futhi umbono wokuthi ukwehla kwamanani kuhlobene nokushintsha kwesimo sezulu. Lokhu kwenza kube nzima kakhulu ukubuyiselwa okwenziwe ngabantu.
Isinyathelo esisebenzayo silinganiselwe ukumelana nokungcoliswa kwamakhemikhali emanzini asolwandle namanzi, kanye nokunciphisa umkhawulo wezinto zokuphazamiseka, njengomsindo wezinjini ezinophephela emhlane nemikhumbi edlulayo. Ngemuva kwalokho i-walrus izokwazi ukubuyisa inani labantu bayo futhi ingaqala ukubuyisa isikhundla sayo ku-global ecosystem.
Incazelo ye-Atlantic walrus
Isilwane esikhulu sasolwandle sinesikhumba esikhulu . Ama-fangs aphezulu ama-walrus athuthukiswa kakhulu, amade futhi aqondiswa phansi. Isizungulwana esibanzi sihleliwe siqinile futhi silukhuni, siningi, amabhlokhi agobekile (i-vibrissa). Inani lamadevu anjalo ezindebeni eziphakeme livame ukuba izingcezu ezingama-300-700. Izindlebe zangaphandle azikho ngokuphelele, futhi amehlo mancane ngosayizi.
Indlela yokuphila, isimilo
Abamele i-subspecies i-Atlantic walrus bathanda ukuhlangana emihlanjeni yezinombolo ezahlukahlukene. Ama-pinnipeds ahlala ndawonye azama ukusizana ngenkani, futhi futhi avikele nezihlobo zawo ezibuthakathaka nezisencane ekuhlaselweni yizitha zemvelo. Lapho izilwane eziningi emhlambini onjalo zimane ziphumule noma zilele, ukuphepha kwazo konke kuqinisekiswa onogada ababizwa ngokuthi ngabalindi. Uma kwenzeka kuvela noma iyiphi ingozi esondelayo lapho laba balindi bashaqa yonke indawo ngomsindo omkhulu.
Kuyathakazelisa! Ngokusho kososayensi, ngesikhathi kubhekwa kaninginingi kwenzeka ukuthi kufakazelwe ukuthi, uma inezindlebe ezinhle kakhulu, insikazi iyakwazi ukuzwa ukubizwa kwamawundlu ayo futhi ibanga elingamakhilomitha amabili.
Ukonakala okubonakala sengathi kuyinto encane nokuhamba kancane kwe-walrus kunxephezelwa ngokuzwa okuhle, iphunga elihle kakhulu, umbono owakhiwe kahle.Abamele ama-pinnipeds bayakwazi ukubhukuda ngokuyisimangaliso futhi banobungane impela, kepha uma kunesidingo bayakwazi ukujikisa isikebhe sokudoba.
Habitat, indawo yokuhlala
Akulula ukulinganisa inani eliphelele labamele ama-subspecies e-Atlantic walrus ngokunembe ngangokunokwenzeka, kodwa ngokunokwenzeka okwamanje awudluli abantu abayizinkulungwane ezingamashumi amabili. Lesi sizwe esingandile sisakazekele sisuka e-Arctic Canada, Svalbard, Greenland, nasendaweni esentshonalanga ye-Russian Arctic.
Kwakungenxa yesisekelo sokusatshalaliswa komhlaba kanye nedatha yesayensi kuyo yonke iminyakazo lapho kungenzeka khona ukucabanga kobukhona bezinto eziyisishiyagalombili kuphela zesilwane, ezinhlanu zazo zitholakala entshonalanga nezintathu engxenyeni esempumalanga yendawo yeGreenland. Kwesinye isikhathi iphini elinjalo lingena emanzini oLwandle Olumhlophe.
Kuyathakazelisa! Embusweni waminyaka yonke, ama-walrus ayakwazi ukufuduka kanye neqhwa elikhulu, ngenxa yalokho athuthela emafulethini eqhwa, abhukuda aye endaweni eyiyo, bese ephumela emhlabeni, lapho ahlela khona ukujikeleza kwawo.
Abamele izinhlangano ezingaphansi kwe-Atlantic walrus esetshenziselwa ukuthola imingcele enwebeka ngaseningizimu kuya esifundeni seCape Cod. Inani elikhulu kakhulu elinezimpondo, lesi silwane satholakala emanzini aseSt Lawrence Bay. Ngentwasahlobo yango-2006, inani labasolwandle elisenyakatho nentshonalanga ye-Atlantic lafakwa kuMthetho waseCanada Threatened Species Act.
Ukudla kwe-Atlantic walrus
Inqubo yokondla yabamele ama-subspecies e-Atlantic walrus icishe ibe njalo. Isisekelo sokudla kwabo ama-mollusk angaphansi, abanjwa kalula ama-pinnipeds. Ama-Walrus ngosizo lwama-tusks abo amade futhi anamandla ashukumisela phansi komhlaba onodaka, okuholela ekugcwalisweni kwamanzi ngamakhulu amagobolondo amancane.
Ama-Walrus aqoqwe yi-walrus abambe emafutheni, emva kwalokho axubha ngokunyakaza okunamandla kakhulu. Izingcezu zegobolondo ezisele ngenxa yalokho ziwela phansi, kanti izimbumbulu ngokwazo zihlala zibhukuda emanzini. Adliwa kakhulu ama-walruses. Ama-crustaceans ahlukahlukene kanye nezibungu futhi asetshenziselwa izinhloso zokudla.
Kuyathakazelisa! Ukudla okuningana kuyadingeka kuma-walrus ukusekela imisebenzi ebalulekile yomzimba, nokwakha amanoni anele angaphansi, okubalulekile ukuvikela i-hypothermia nokubhukuda.
Izinhlanzi yizilwane ezihinwe ngamaphinifa aziswa, ngakho-ke ukudla okunjalo akuvamile ukudliwa, kuphela ngezikhathi zezinkinga ezinkulu kakhulu ezihambisana nokudla. Ama-walruses e-Atlantic awazideleli izimidondoshiya ezinesikhumba esimnyama nokuthwala nhlobo. Ososayensi baqophe izigameko zokuhlaselwa kwezilwane ezinkulu ezifuywe ngopende kumakharafini nasemaqombeni.
Ukuzalela inzalo
Ama-walrus e-Atlantic afinyelela ukuthomba okugcwele lapho eneminyaka emihlanu kuya kwayisithupha kuphela, futhi isikhathi sokuzala esisebenzayo kulawo ma-pinnipeds senzeka ngo-Ephreli nangoMeyi.
Kwakungaleso sikhathi lapho abesilisa, ababekade behlukaniswa isimo sokuthula kakhulu, baba nolaka kakhulu, ngakho-ke bavame ukulwa bodwa ukuze kube ngabesifazane, besebenzisa ama-tks amakhulu futhi athuthukiswe kahle kule njongo. Kuyiqiniso, abesifazane abavuthiwe ngokobulili bakhetha abesilisa kuphela abanamandla kakhulu futhi abakhuthele kakhulu njengabalingani babo kwezocansi.
Isikhathi sokumaphakathi okujwayelekile sama-walrus walruses asidluli izinsuku ezingama-340-370, emva kwalokho kube munye kuphela, kepha sikhulu ngobukhulu, kuzalwa amawundlu. Ezimweni ezingavamile kakhulu, kuzalwa amawele . Ubude bomzimba we-walantic esanda kuzalwa buba imitha eyodwa nesisindo esilingana no-28-30 kg. Kusukela ezinsukwini zokuqala kakhulu zokuphila kwabo, izingane zifunda ukubhukuda. Ngonyaka wokuqala, ama-walruses adla kuphela ubisi lukamama, futhi kuphela emva kwalokho bathola amandla okudla okubonakalayo kokudla kwama-walruse amadala.
Nakanjani wonke ama-walruses anomqondo wemvelo owenziwe kahle womama, ngakho-ke ayakwazi ukuvikela ngokuzithandela amawundlu awo uma kwenzeka kuba nobungozi. Ngokusho kokubukwa, iningi, izinsikazi ze-Atlantic walrus zingomama abanothile futhi abakhathalelayo. Kuze kube cishe ngeminyaka emithathu, lapho ama-walrus asemasha enamahloka nezihlakala, abantu abasha cishe njalo bahlala eduze komzali wabo. Sengineminyaka emithathu kuphela, sengivele sengikhule ngokwanele, ingabe abamele izinhlangano ezingaphansi kwe-Atlantic walrus baqala ukuba badala.