Wadatacce
Ajalin kangaroo a zahiri ya ƙunshi nau'o'i daban -daban na gidan marsupial, waɗanda ke da muhimman halaye na kowa. Daga cikin dukkan nau'ikan za mu iya haskaka ja kangaroo, tunda ita ce mafi girman marsupial da ke wanzu a yau, tare da tsayin mita 1.5 da kilo 85 na nauyin jiki, a yanayin maza.
Ana amfani da nau'ikan kangaroo daban -daban a cikin Oceanica kuma sun zama dabbobi mafi wakilci a Ostiraliya. A cikin su an fito da kafafunsu masu ƙarfi na ƙarfi har ma da doguwar su da tsokar wutsiya, ta inda za su iya motsawa tare da tsalle mai ban mamaki.
Wani fasali na waɗannan dabbobin da ke tayar da babban sha'awa shine jakar hannu suna cikin yankin ventral ɗin su. Saboda haka, a cikin wannan labarin PeritoAnimal za mu bayyana muku menene jakar kangaroo ga.
Menene marsupium?
Mai ɗaukar jariri shine abin da aka fi sani da jakar kangaroo kuma ninki ne a fatar wannan dabbar da yana samuwa ne kawai a cikin mata, yayin da yake rufe ƙirjinku yana ƙirƙirar jakar epidermal wanda ke aiki azaman incubator.
Kwafin fata ne wanda yake kan bangon ventral na waje kuma, kamar yadda za mu gani a ƙasa, kai tsaye ne hade da halittar zuriya na kangaroo.
Menene marsupium don?
Mace na haihuwa kusan a lokacin da har yanzu tana cikin yanayin mahaifa, tsakanin kwanaki 31 zuwa 36 na ciki. Jaririn kangaroo kawai yana haɓaka hannayensa kuma godiya gare su yana iya motsawa daga farji zuwa mai ɗaukar jariri.
Kangaroo spawn tafi zauna a cikin jaka na kusan watanni 8 amma tsawon watanni 6 lokaci -lokaci zai je wurin mai ɗaukar jariri don ci gaba da ciyarwa.
Zamu iya ayyana kamar haka ayyuka na musayar hannun jari na kangaroo:
- Yana aiki azaman incubator kuma yana ba da damar cikakken juyin halittar kwayoyin halittar.
- Yana ba mace damar shayar da 'ya'yanta.
- Lokacin da zuriyar ta haɓaka yadda yakamata, kangaroos suna jigilar su akan marsupium don kare su daga barazanar mafarauta daban -daban.
Kamar yadda wataƙila kun riga kun lura, wannan tsarin jikin mutum a cikin kangaroos na mata ba bisa ƙa'ida ba ne, yana bin ƙa'idodin ɗan taƙaitaccen gestation na zuriyar.
Kangaroo, nau'in da ke cikin haɗari
Abin takaici, manyan nau'ikan kangaroo guda uku (ja kangaroo, launin toka na gabas da launin toka na yamma) suna cikin haɗarin ɓacewa. galibi saboda illar dumamar yanayi, wanda nesa da kasancewa wani ra'ayi na zahiri abu ne mai barazana ga duniyarmu da halittun halittun ta.
Haɓaka digiri biyu na ma'aunin celcius na iya yin illa ga yawan kangaroo, kuma bisa ga ƙididdiga da bincike daban -daban an kiyasta cewa wannan ƙimar zafin na iya faruwa a cikin shekarar 2030 kuma zai rage yankin rarraba kangaroos da kusan kashi 89%.
Kamar koyaushe, kula da muhalli yana da mahimmanci don kula da rayayyun halittu na duniyarmu.
