Ihlengethwa elinobuso obumhlophe limelela ngokusobala izinhlobo zezinhlengethwa ezisuka ku-oda lamaCetaceans kanye nohlobo lwamahlengethwa anekhanda elifushane. Ekuthunjweni, njengomthetho, kugcinwa izilwane ezi-grey zakudala, kepha kwesinye isikhathi kungenzeka ukuhlangana nobuhle obumhlophe obubonakala ngokuziphatha komphakathi kanye nomuzwa othuthukile.
Incazelo yehlengethwa elibhekene nomhlophe
Amahlengethwa anobuso obumhlophe anokwakheka komzimba okuqinile futhi okulingene.... Umhlali onjalo wamanzi ubonakala ngokuzijabulisa nokulangazelela, kanye nokuhamba nokudlalisa okukhulu.
Ukubukeka
Ihlengethwa elibhekene nomhlophe liyisakhamuzi sasemanzini esikhulu ngokwanele. Isilinganiso sobude besilwane esidala singamamitha amathathu ngesisindo somzimba esifinyelela kuma-350-355 kilograms. Isakhamuzi esinjalo sasemanzini sibonakala ezinhlangothini nasengxenyeni engenhla ngemuva kwendawo yesiphetho yombala ompunga ngokumpunga. Ingxenye engezansi yomzimba imhlophe, kanti uhlangothi olungaphezulu olungaphambi kwendawo yesiphetho se-dorsal limpunga ngokumnyama. Isiphetho sephiko langemuva namaphiko wehlengethwa elibuso obumhlophe kunombala omnyama.
Umlomo wasemanzini uvame ukuba mhlophe, kodwa kwabanye ungumpunga womlotha. Amahlengethwa anobuso obumhlophe anamazinyo angama-25-28 akhule kahle futhi aqinile emhlathini ngamunye. Abamele izinhlobo zamahlengethwa kusuka ku-oda le-Cetaceans kanye nohlobo lwamahlengethwa anekhanda elifushane abonakala ngokuba khona kwama-vertebrae angama-92, okudlula inani lokwakheka okunjalo kunoma yiziphi ezinye izinhlobo ezivela emndenini weDelphinidae. Amahlengethwa abhekene nabamhlophe ayakwazi ukubhukuda, athuthukise kalula isivinini esifinyelela ku-30 km / h futhi ngezikhathi ezithile adonsela ekujuleni kwamamitha angama-40-45 nangaphezulu.
Indlela yokuphila, isimilo
Amahlengethwa anobuso obumhlophe atholakala emanzini apholile, eduze nogu ngababili noma ngemihlambi esondelene, emelwe ngabantu abayi-10-12. Kwesinye isikhathi izakhamuzi zasemanzini ezingavamile ezinjalo ziyakwazi ukuhlanganisa emihlambini emikhulu kakhulu, enabantu abangamakhulu amaningana.
Kuyathakazelisa!Izinhlobo zehlengethwa elibhekene nabamhlophe lingelesigaba sezilwane ezingatadiswanga kangako, futhi okwamanje alivamile kakhulu endaweni yalo yemvelo.
Amahlengethwa anobuso obumhlophe kaningi enza uhlobo lwenkampani kwamanye amalungu omndeni, kufaka phakathi umkhoma i-humpback whale kanye ne-fin whale. Amakholoni amakhulu kunawo wonke abangelwa ukutholakala kwenani elithile lezilwane endaweni ethile. Ezindaweni ezibonakala ngenala yokudla, amahlengethwa abhekene nabamhlophe ayakwazi ukuhlangana emakoloni abantu abayinkulungwane nengxenye.
Kuhlala isikhathi esingakanani amahlengethwa abhekane nokumhlophe
Isikhathi esiphakathi sehlengethwa sobuso obumhlophe endaweni yemvelo sifinyelela emashumini amane eminyaka. Ekuthunjweni, umhlali onjalo wasemanzini angaphila kakhulu.
I-dimorphism yezocansi
Ihlengethwa lesifazane linesibaya esisodwa se-urogenital esisuka ngokulingana nendawo yesisu... Futhi iqukethe ukuphuma kwendunu. I-clitoris ethuthuke kahle, emelwe yi-corpus cavernosum nolwelwesi olujiyile olujiyile, iphuma ingene esikhunjeni esixinene esinezicubu ezisengxenyeni engaphambili yowesifazane. Izitho zangasese zangaphandle zehlengethwa labesifazane yi-labia minora ne-majora.
Kuyathakazelisa! Kumele kuqashelwe ukuthi abesilisa behlengethwa elibhekene nomhlophe, ngokwesayizi yomzimba, njengenjwayelo, bakhulu kakhulu kunabesifazane.
Izitho zangasese zamahlengethwa abesilisa zibonakala ngokuba khona kwe-perineum, ehlukanisa isibaya sangasese kanye nokuphuma kwendunu. Amahlengethwa aswele i-scrotum, futhi umgodi wesisu usebenza njengendawo yama-testes. Ngokuya ngezinga lokushisa komzimba ku-37mayelanaKusuka kumadigri, inqubo ye-spermatogenesis iqhubeka ngokujwayelekile, futhi umbuso wokushisa obucayi wale nqubo ngu-38mayelanaKUSUKA.
Indawo yokuhlala
Isilwane sasemanzini esincelisayo sihlala eNyakatho ye-Atlantic kusuka ogwini lwaseFrance kuye oLwandle iBarents. Futhi, indawo yemvelo yommeleli walezi zinhlobo zamahlengethwa asuka ku-oda le-Cetaceans kanye nohlobo lwamahlengethwa anekhanda elifushane anqunyelwe eLabrador nasemanzini e-Davis Strait, kuze kufike eMassachusetts.
Ngokusho kokubona kochwepheshe, lo mhlali wasemanzini usakazeke kakhulu emanzini oLwandle lwaseNorway nasemanzini oLwandle lwaseNyakatho, ahlala ezindaweni ezisogwini lwaseGreat Britain naseNorway. Kunalokho kuqoshwe imihlambi emikhulu yamahlengethwa anemilomo emhlophe eVarangerfjord. Inani labantu kule ndawo lifinyelela amakhanda ayizinkulungwane eziningana emhlambini ngamunye.
Ebusika, inani lamahlengethwa anemilomo emhlophe lincamela ukufudukela ezindaweni eziseningizimu zalolu hambo, lapho kuqashelwa khona izimo zezulu ezifudumele nezinethezekile. ERussia, isilwane esincelisayo esinjalo sitholakala yonke indawo kulo lonke ugu lwaseMurmansk naseNhlonhlweni YeRybachy. Kunezimo ezaziwayo zamahlengethwa anemilomo emhlophe ahlala eGulf of Finland naseRiga, kepha indawo enjalo yezilwane ezincelisayo zasemanzini kungenzeka ihluke kakhulu. Abantu abaningi batholakala ngasogwini lwaseSweden eBaltic.
Emanzini eDavis Strait, amahlengethwa abhekene nobumhlophe avela entwasahlobo kanye nama-porpoise, ngemuva kokuthi imikhomo i-narwhal ne-beluga ishiye indawo, okuyingozi yangempela ezilwaneni ezingajwayelekile. Kodwa-ke, ngoNovemba, izakhamuzi zasemanzini zizama ukufuduka ngokushesha ngangokunokwenzeka zisondele ngaseningizimu, lapho isimo sezulu sihlala sikhululeke ngangokunokwenzeka.
Ukudla okubhekwe ngabamhlophe
Amahlengethwa anobuso obumhlophe yizilwane ezidla emanzini. Abamele lezo zinhlobo zamahlengethwa kusuka ku-oda le-Cetaceans kanye nohlobo lwamahlengethwa anekhanda elifushane adla kakhulu izinhlanzi, kanye nama-crustaceans nama-molluscs.
Lezi zakhamuzi ezinkulu zasemanzini zithola ukudla ngokwazo, ngakho-ke ukudla kwesilwane kuhluke kakhulu.
Isilwane esincelisayo sondla i-cod, i-herring, i-capelin nezinye izinhlanzi... Amahlengethwa awabeki nhlobo ingozi kubantu. Noma kunjalo, kunezimo ezaziwayo impela lapho izakhamuzi zasemanzini ziletha ukuphazamiseka okuthile kubantu. Izilwane ezinhle kakhulu futhi ezinhle kakhulu zithanda ukudlala futhi zihlanya ngokuhlanyayo. Lapho edlala ngaphansi kwamanzi, amahlengethwa axosha ulwelwe olukhulu.
Kuyathakazelisa! Ngemuva kokudla ukudla, amahlengethwa anemilomo emhlophe ahlukaniswe ngamaqembu amancane ambalwa, ahamba ngokushesha ezinhlangothini ezihlukile.
Ngesikhathi sabo sokuphumula ekufuneni ukudla nokuphumula, ama-cetaceans amadala akhetha ukuzikhohlisa futhi asheshise afike kumakhilomitha angama-35-40 ngehora, futhi enze nokuzuma okumangazayo ngaphezulu kwamanzi. Kufakazelwe ngokwesayensi umphumela ozuzisayo we-ultrasound ekhishwa ngamahlengethwa kubantu. Ngenxa yokudlala kwabo, ilukuluku nemvelo enhle, izilwane ezinjalo ezincelisayo zisetshenziswa ngenkuthalo kumahlengethwa nasemapaki amanzi.
Ukuzala nenzalo
Isikhathi sokumataniswa okusebenzayo nokuzalwa kwenzalo siwela kuphela ezinyangeni ezifudumele zasehlobo. Isikhathi esimaphakathi sokukhulelwa sehlengethwa lesifazane elinentshebe emhlophe cishe izinyanga eziyishumi nanye.
Isikhathi esithile ngemuva kokuzalwa kwamahlengethwa, abesifazane nabo bazama ukuzigcina behlukile kwamanye amalungu omndeni. Kuzothatha iminyaka eyisikhombisa kuya kweyishumi nambili ukuthi amahlengethwa amancane akhule, aqine futhi afinyelele ekuvuthweni ngokocansi. Sonke lesi sikhathi, owesifazane ufundisa inzalo yakhe amakhono ayisisekelo, kufaka phakathi ukuthola ukudla nokugcina impilo yakhe ezimweni ezingezinhle.
Izilwane ezimangalisayo nezihlonipheke kakhulu ezihlala emanzini zinamabala acebile kakhulu futhi akhethekile, ziyakwazi ukukhipha amakhwela nokukhala, ukuchofoza okuhlukahlukene, kanye nezinye izinhlobo eziningi zamaphimbo. Akusizi ngalutho ukuthi wonke amahlengethwa, kufaka phakathi anezintshebe ezimhlophe, adume ngezinga lawo lokukhula. Imvamisa, izilwane ezinjalo azizami ukunikeza usizo kubantu besizwe sazo kuphela, kepha nakubantu abasenkingeni, abaphukelwe umkhumbi noma abaminza.
Izitha zemvelo
Umthombo oyinhloko wengozi yamahlengethwa abhekene nabamhlophe ngabantu, impilo yabo, kanye nokukhishwa kwezimboni eziyingozi emanzini olwandle. Isilwane esinobungane nesijabule cishe asinazo izitha zemvelo.
Ngokwezibalo, inani elilinganiselwe labamele lolu hlobo lifinyelela ku-100 000. Ezinye izilwane ezincelisayo zabahlali basemanzini ziyafa lapho zingena emanetheni okudoba, kodwa usongo olukhulu kakhulu empilweni yamahlengethwa abhekene nabamhlophe ukungcoliswa kwamanzi ngezinto eziyingozi ze-organochlorine nezinsimbi ezisindayo. Ukulwa nokuzingela ngokungemthetho nakho kungathathwa njengezinyathelo zokuvikela.
Kuyathakazelisa!Yize iqiniso lokuthi isilwane esincelisayo asiyona into yokudoba ngenjongo yokuhweba futhi ngezinga elikhulu, kwamanye amazwe, izilwane ezinjalo zazibanjwa njalo ukuze zisetshenziswe embonini yokudla.
Ngokuvamile amahlengethwa asekhulile abhekana nezinkinga ezinkulu zomhlathi. Njengomthetho, izilwane ezincelisayo ezindala zihlushwa izifo ezimelwe ngamathumba e-alveolar, bone exostoses kanye nama-synostoses. Kukhona nezinambuzane ze-nematode ezithinta kabi impilo yonke kanye nesikhathi sokuphila samahlengethwa.
Inani labantu kanye nesimo sezinhlobo
Uma kubhekwa inani lama-cetacean amakhulu emhlabeni wonke, kungenzeka ukuphetha ngokuthi abamele lolu hlobo okwamanje basesimweni esizinzile. Ihlengethwa elibhekene nomhlophe elivela e-Red Book liyinhlobo engavamile, encane yemvelo edinga ukuvikelwa nokulondolozwa.
Kuzothakazelisa futhi:
- Umkhomo i-Orca noma ihlengethwa?
- Umbulali whale (Latin Orcinus orca)
- Kungani oshaka besaba amahlengethwa - amaqiniso nezinsumansumane
- Oshaka (lat Selachii)
