-Delile
- yini ukufiphala kocansi
- Izici ezibangela ukufiphala kocansi ezilwaneni
- Izibonelo ze-dimorphism yezocansi ezilwaneni
- Izibonelo ze-dimorphism yezocansi ezilwaneni ezi-polygynous
- Izibonelo ze-dimorphism yezocansi ezilwaneni ukuze zizihlukanise
- Izibonelo ze-dimorphism yezocansi ezilwaneni ngokusebenza kocansi
- Izibonelo ze-dimorphism yezocansi ezilwaneni lapho abesifazane bakhulu khona
- Ezinye izibonelo ze-dimorphism yezocansi ezilwaneni
- i-dimorphism yezocansi kubantu
Ukuzala ngokuzala ngokocansi, ezimweni eziningi, kuzuzisa kakhulu, kepha isici esiyinhloko saleli qhinga lokuzala ubukhona obudingekayo bobulili obubili. Umncintiswano wezinsizakusebenza, ubungozi bokudliwa yisikhathi, izindleko zamandla ezibandakanyeka ekutholeni nasekuthandaneni umlingani zenza izinhlobo eziningi izilwane ziye zavela ukwenza lula le nqubo.
Kule ndatshana kaPeritoAnimal sizokhuluma ngaye i-dimorphism yezocansi - incazelo, inhlebo nezibonelo ukubhekana nokuthi yiziphi izinto eziyibangelayo nokuthi umsebenzi wazo unani ngokuya ngezinhlobo ezahlukahlukene. Ukufunda okuhle.
yini ukufiphala kocansi
I-dimorphism yezocansi yiyona izici ezihlukanisa ubulili obubodwa komunye phakathi kwezilwane nezitshalo. Njengomqondo ochazwe ngumuntu, yizinhlobo kuphela ezingabesilisa nabesifazane esingazihlukanisa ngeso lenyama ezizoba ne-dimorphism yezocansi. Uma lokhu kufiphala kunqunywa kuphela ngama-pheromones noma iphunga elikhishwa ubulili obuhlukile hhayi ngesici esibonakalayo, ngeke libizwe nge-dimorphism.
I-dimorphism yezocansi evezwe njengokwehluka ngosayizi kanye ne-morphology phakathi kobulili isabalele embusweni wezilwane. UCharles Darwin wakubona lokhu futhi wazama ukunikeza incazelo ngemibono ehlukahlukene. Ngakolunye uhlangothi, wathi i-dimorphism yezocansi yayihloselwe ukukhetha ngokocansi, i-dimorphism iyinzuzo, ngokwesibonelo, kwabesilisa abancintisana nabesifazane. Enye i-hypothesis egcwalisa eyedlule ukuthi i-dimorphism yezocansi, ngaphezu kokukhetha ukukhethwa kocansi, kungenzeka ukuthi yavela njengomncintiswano wokudla noma izinsiza ngokujwayelekile.
Kufanele kucatshangwe ukuthi ezimweni eziningi le dimorphism yezocansi yenza umuntu oyithwalayo okubabazekayo futhi ngenxa yalokho maningi amathuba okuba isisulu.
Izici ezibangela ukufiphala kocansi ezilwaneni
Isici esiyinhloko esidala ukufiphala kocansi yi-genetics, imvamisa evezwa ngama-chromosomes ezocansi. Ezimweni eziningi ze-dimorphism yezocansi ku izilwane ezinomgogodla, Abesifazane banama-chromosomes ama-X amabili kanti abesilisa bane-X ne-Y chromosome, enquma ukuthi bazalwa bengabesilisa noma abesifazane. Ezinhlotsheni eziningi ezingenamgogodla, abesifazane bazoba ne-chromosome eyodwa yocansi kanti abesilisa bazoba nezimbili.
Esinye isici esibalulekile ama-hormone. Ubulili ngabunye buyahlukahluka ngokugxila okuhlukile kwamahomoni athile. Futhi, ngesikhathi se- ukukhula kombunguEzinhlotsheni ezithile, ukugxila okuphezulu kwe-testosterone ebuchosheni kuzomenza ukuthi akhule njengowesifazane.
THE ukudla nakho kubalulekile ekwakhiweni okulungile kwezici zesibili zobulili ezizokhulisa i-dimorphism. Isilwane esigulayo nesingondlekile singaba ne-dimorphism empofu futhi cishe ngeke sihehe abobulili obuhlukile.
THE izinkathi zonyaka futhi inkathi yokukhwelana ibangela ukuba i-dimorphism ivele ezinhlotsheni ezithile lapho izici ze-dimorphism yezocansi zingabonakali kangako unyaka wonke. Lokhu kunjalo kwezinye izinyoni.
Izibonelo ze-dimorphism yezocansi ezilwaneni
Ukuqonda okuhlukile izinhlobo ze-dimorphism yezocansi, indlela elula ukubuka udwendwe lwezinhlobo ezahlukahlukene nendlela yazo yokuphila.
Izibonelo ze-dimorphism yezocansi ezilwaneni ezi-polygynous
Ezimweni eziningi, i-dimorphism yezocansi ingachazwa njenge- ukuncintisana kwabesifazane. Lokhu kwenzeka ezilwaneni ezinesithembu (amaqembu ezinsikazi anendoda eyodwa noma ezimbalwa). Kulezi zimo, abesilisa kufanele bancintisane ukuze bakwazi ukukhwelana nabesifazane, okubenza babe bakhulu, baqine futhi babe namandla kunabo. Futhi, imvamisa banomzimba othile osebenza njengesivikelo noma icala. Lokhu kunjalo, ngokwesibonelo, ngezilwane ezilandelayo:
- Izinyamazane
- Indlovu
- Inhlwathi
- Imfene
- IGorilla
- Ipigogo
- i-grouse enkulu
- Ingulube
Izibonelo ze-dimorphism yezocansi ezilwaneni ukuze zizihlukanise
Kwezinye izilwane, i-dimorphism ikhona ukuze abesifazane nabesilisa bohlobo olufanayo bakwazi ukuhlukaniswa. Lokhu kunjalo ngama-parakeets. O i-dimorphism yezocansi kulezi zinyoni itholakala emlonyeni, endaweni ethize ebizwa nge- "wax". Abesifazane banayo le ngxenye ensundu nensundu futhi abesilisa bayithambile futhi iluhlaza okwesibhakabhaka. Ngakho-ke, uma i-wax yowesifazane ipendwe ngombala oluhlaza okwesibhakabhaka, uzohlaselwa ngabesilisa, kuthi uma owesilisa ependwe ngombala onsundu, akhonzwe njengowesifazane.
Izibonelo ze-dimorphism yezocansi ezilwaneni ngokusebenza kocansi
Esinye isibonelo se-dimorphism yezocansi sinikezwa ngokusebenza kocansi ezinhlotsheni. Ngakho-ke, amaxoxo avame ukugona abesifazane ngesikhathi sokuqhutshwa anezingalo ezinamandla, ezithuthuke kakhudlwana, futhi ingaba namameva ezandleni zokubamba kangcono.
I-Dimorphism nayo ingasetshenziswa njengengxenye yokuqomisana. Lokhu kunjalo ngezinyoni zepharadesi. lezi zinyoni azinazo izilwane ezizingelayo zemvelo endaweni yabo yendabuko, ngakho-ke, ukuba nezimpaphe ezinamandla kakhulu, izimpaphe ezinde emsileni noma ekhanda akubenzi bathambekele ekudleni, kepha kungukuheha okuhle kwabesifazane. Le mpaphe ayigcini ngokuheha abesifazane kuphela, kepha futhi inika imininingwane ngesimo sempilo yowesilisa kanye nokuba nethuba lokuthola inzalo enempilo.
Izibonelo ze-dimorphism yezocansi ezilwaneni lapho abesifazane bakhulu khona
Izinyoni zesifazane ezidla inyama, njengezinkozi, izikhova noma izilo, zikhulu kunezeduna, kwesinye isikhathi zikhulu kakhulu. Lokho kungenxa yokuthi imvamisa i insikazi echitha isikhathi esiningi esidlekeni ukufukamela amaqanda, ngakho-ke, ukuba kukhulu kuzosiza ekuvikeleni isidleke. Futhi, laba besifazane ngokuvamile banolaka futhi bayindawo kunabesilisa, ngakho-ke usayizi wabo omkhulu uyasiza.
Eqenjini le-arthropod, abesifazane bavame ukuba bakhulu ngokwedlulele kunabesilisa, njengoba kunjalo izicabucabu, izigqoko zokuthandaza, izimpukane, omiyane, njll. Kwenzeka okufanayo nakwizilwane eziphila ezweni nasemanzini nezilwane ezihuquzelayo, lapho abesifazane bakhona futhi abakhulu.
Ezinye izibonelo ze-dimorphism yezocansi ezilwaneni
Kukhona nezimo ezithile, ezifana nezimpisi. Abesifazane, ngaphambi kokubeletha, cishe abahlukaniswa nabesilisa. Banesigaxa esikhulu esilingana nesitho sowesilisa, izindebe zabo zinwetshiwe futhi zibukeka njengesikhubekiso. Ngemuva kokubeletha, izingono ziyabonakala ukuze zibonakale. Futhi, zikhulu kakhulu kunabesilisa, kungenxa yokuthi bayizilwane ezidla abantu futhi noma yimuphi owesilisa wayengazama ukudla ithole elisanda kuzalwa. Ukugwema lokhu, inqwaba enkulu yabesifazane namandla kuyadingeka.
i-dimorphism yezocansi kubantu
Abantu futhi bane-dimorphism yezocansi, yize ezinye izifundo ziphakamisa ukuthi abukho ubufazi obuqinile noma ubudoda nokuthi abantu bathambekele ekuhlanganiseni izici zocansi, okungukuthi, ezinhlotsheni zethu kunamadoda amaningi noma angaphansi kwamadoda futhi abesifazane abaningi noma abancane banesifazane. Yibo izindinganiso zamasiko nezindinganiso zobuhle lokho kusiholela esikweni lokwehlukanisa ngokocansi.
Ngo- ukuthomba, abesifazane nabesilisa baqala ukuthuthukisa izitho zabo zocansi, zibukeke zihlukile komunye nomunye. Izinwele zivela emakhwapheni, ezinkantini, ebusweni, emilenzeni nakwezinye izingxenye zomzimba. Amadoda, ngokwezakhi zofuzo, athambekele ekubeni nezinwele eziningi ebusweni babo nakwezinye izindawo zomzimba, kepha amadoda amaningi awanazo. Abesifazane nabo banezinwele emlonyeni wabo ongaphezulu.
Isici esiyingqayizivele sabesifazane ukuthuthukiswa kwe- izindlala ezincelisayo, kulawulwa izakhi zofuzo namahomoni, yize kungebona bonke abesifazane abanezinga elifanayo lokukhula.
Manje njengoba usuyazi incazelo ye-dimorphism yezocansi futhi usubonile izibonelo ezimbalwa, ungahle ube nentshisekelo kule enye indatshana lapho sichaza ukuthi zikhona yini izilwane zobungqingili. Ungaphuthelwa.
Uma ufuna ukufunda izindatshana eziningi ezifana ne- I-Dimorphism yezocansi - Incazelo, i-Trivia nezibonelo, sincoma ukuthi ufake isigaba sethu se-Curiosities somhlaba wezilwane.