Izinyoni eziningi zomndeni wakwa-Anatidae zibizwa ngokuthi ngamahansi. Lo mndeni ubuye ufake ama-swans (amakhulu kunamahansi) namadada, mancane.
Amahansi ahlalaphi
Amahansi eqiniso yizinyoni eziphakathi nezikhulu, njalo (ngaphandle kwehansi laseHawaii), ezihlala eduze nemizimba yamanzi. Izinhlobo eziningi zaseYurophu, e-Asia naseNyakatho Melika ziyafuduka, zizalele ezindaweni ezisenyakatho nobusika eningizimu.
Ubudlelwano bomshado bamahansi
Amahansi akha umndeni futhi ahlala ndawonye impilo yawo yonke (kuze kube yiminyaka engama-25), unyaka ngamunye uveza inzalo entsha.
Indlela amahansi endiza ngayo amabanga amade
Amahansi afudukayo akha umugqa omkhulu omise okwe-V. Lesi simiso esimangalisayo sisiza inyoni ngayinye ukuba indize iye kude kunaleyo ebingandiza yona yodwa.
Lapho ihansi liwela ngaphandle kokhakhayi, lizwa ukumelana nomoya bese libuyela ngokushesha esenzweni ukusizakala ngokuphakanyiswa kwenyoni ephambi kwalo. Lapho ihansi elisenhloko yomhlambi likhathala, uthatha isikhundla sokugcina ekwakhekeni, ashiye elinye ihansi njengomholi. Bammemeza ngisho nokukhuthaza labo abaphambili ukuthi balondoloze ijubane.
Ukwethembeka kwehansi
Amahansi athandana kakhulu nezinye izinyoni eqenjini (umhlambi). Uma othile egula, elimele noma edutshuliwe, amahansi ambalwa ashiya ukwakheka bese elandela ihansi phansi ukusiza nokuvikela.
Bahlala nehansi elikhubazekile lize life noma liphinde lisuke futhi, bese behlangana neqembu noma bahambe nomunye umhlambi wehansi.
Amahansi achitha isikhathi sabo esiningi efuna ukudla kwezitshalo. Onke amahansi adla ukudla okudla imifino kuphela.
Bakhala kakhulu futhi baqondise izintamo zabo ezinde lapho besaba noma besatshiswa.
Amahansi avame ukubeka inani elincane lamaqanda. Bobabili abazali bavikela isidleke namancane, okuvame ukuholela ezingeni eliphakeme lokusinda kwamantshontsho.
Izinhlobo zamahansi
Okumpunga
Ukhokho wase-Eurasia ovame kakhulu kuwo wonke amahansi asekhaya asentshonalanga. Kungumndeni wakwa-Anserinae, umndeni wakwa-Anatidae (oda i-Anseriformes). Kuzala ezifundeni ezipholile nobusika kusuka eBrithani kuye eNyakatho Afrika, eNdiya naseChina. Ihansi elimpunga linomzimba ompunga ophaphathekile. Ama-paws noqhwaku abomvana ku-goese esempumalanga, i-orange entshonalanga yamahansi.
Ubhontshisi
Ihansi elimnyama ngokunsundu ngokwedlulele elinendawo ejwayelekile ewolintshi ngoqhwaku lwalo nezinyawo zalo eziwolintshi. Kuzala i-tundra nobusika ezindaweni zezolimo nezamaxhaphozi.
Sukhonos
Amaswidi asendle anomlomo osindayo omnyama ngokuphelele, izidladla nezinyawo ziwolintshi, amehlo (irises) anemibala ye-burgundy. Uqhwaku olomile lwasekhaya kwesinye isikhathi luba nebala elimhlophe ngemuva komlomo kanye nesigaxa esisezansi komlomo, esingatholakali ezihlotsheni zasendle. Abesilisa nabesifazane babukeka ngokufana, ngaphandle kwemilomo emide nezintamo zabesilisa.
Ihansi lentaba
Leli goose elihle, eliqinile linemigqa ephindwe kabili yezimpaphe ezimnyama ezungeza ikhanda layo elimhlophe. Umzimba umpunga okhanyayo kanti imilenze noqhwaku kuwolintshi okugqamile. Abesifazane nabesilisa bayefana.
Lezi zinyoni zindiza phezulu kunezinye izinyoni. Ososayensi bathole ukuthi amangqamuzana abo egazi aqukethe uhlobo olukhethekile lwe-hemoglobin (amaprotheni egazi) amunca ngokushesha umoya-mpilo ezindaweni eziphakeme. Enye inzuzo: ama-capillaries awo (imithambo yegazi emincane) angena ajule emisipheni, athuthe kangcono i-oxygen emicimbini yemisipha.
Inyama yenkukhu
Kuyinto ihansi elimpunga elikhulu neliphaphathekile elinekhanda elincane. Uqhwaku lwawo olufushane olungunxantathu lucishe lufihlwe ngumcu ophuzi ogqamile ophuzi (isikhumba ngenhla komlomo). Umzimba uhlotshiswe ngochungechunge lwamabala amakhulu amnyama emigqeni enqamula amahlombe nama-wing integuments. I-Paws pink ibomvu okumnyama, izinyawo zimnyama Endizeni, amathiphu amnyama ayabonakala eceleni konqenqema lwamaphiko.
Ihansi leNayile
Le nyoni inombala onsundu ngokumpunga nampunga, inezimpawu ezinsundu ezigqamile noma ze-chestnut ezungeze amehlo, intamo (efana nokhololo), engxenyeni yamaphiko nangaphansi komsila omnyama. Ngokuphikisana ngokuphelele, kunamabala amhlophe acwazimulayo ezimpikweni, agcwaliswa yi-emerald enamandla ezimpapheni zesilisa zesibili. Kukhona nendawo ehlukile ensundu maphakathi nesifuba.
Insikazi yalolu hlobo incane kancane kuneduna. Ngaphezu kwalokho, kunokwehluka okumbalwa noma akukho okucacile phakathi kobulili.
Ihansi le-Andean
Ihansi elikhulu elinezimpaphe ezimhlophe, ngaphandle kwamaphiko nomsila. Inyoni esikhulile inekhanda elimhlophe, intamo, umzimba ophansi, emuva, i-croup nezimpiko eziningi. Izimpaphe ezimnyama ezicwebezelayo ziyabonakala ezimpikweni. Umsila umnyama. Amahlombe anezimpaphe ezimnyama nezimhlophe.
UMagellan
Abesilisa baba mpunga-mhlophe ngemivimbo emnyama esiswini nangaphezulu emuva (abanye besilisa banamabhande amhlophe ngokuphelele). Abesifazane bamnyama emzimbeni ongezansi futhi banezimpaphe ze-chestnut emakhanda abo.
Ihansi likaBeloshey
Incane futhi imfushane, inezimpaphe ezimnyama eziluhlaza okwesibhakabhaka nemivimbo emnyama emzimbeni ongenhla. Abesifazane nabesilisa bayafana, abesifazane bancane kancane. Amabala amancane anombala omncane kufiphele kunabantu abadala, anemivimbo ensundu emzimbeni ongenhla, amabala ampunga ekhanda nasentanyeni, imilenze ensundu ngomnqumo nophiko olumnyama.
Ihansi elimhlophe ngaphambili
Ihansi elimhlophe polar
