Aaramar sifa posum dabba ce mai ban mamaki da aka sani da wayo. Iyalan posum suna da gidajan gida guda biyu, wanda keɓaɓɓu guda 17 sun bambanta da juna.
Bayani
Wadannan dabbobin ba su da girma: daga tsawon santimita bakwai zuwa hamsin. Jela, a matsayinka na mai mulki, a cikin dukkan ƙananan raƙuman ruwa suna da ƙarfi da ƙarfi (tsayin wutsiya ya bambanta daga santimita 4 zuwa 55), tare da abin da suke ƙari akan rassa. Nauyin dabbobi ma daban ne. Misali, nauyin balagaggen dan Chacoesian mai kyawun baiwa bai wuce gram 40 ba. Lokacin da shahararrun dangin dangi na yau da kullun suka kai kilo 6 na nauyi.
Jawo daga cikin waɗannan nau'in ya fi tsayi da yawa. Launin jiki launin toka ne, ƙafafu duhu ne, kusan baƙi. Muzzle din yana da tsayi kuma yana da haske (kusan fari) launi.
Gidajen zama
Mazaunin mallaka yana da fadi sosai kuma yana farawa a kudu maso gabashin Kanada, sannan ya ratsa kusan dukkanin jihohin gabas (daga West Virginia zuwa Alabama). Hakanan maƙasudin suna yadu sosai a yankin Kudancin Amurka: a Argentina, Peru, Brazil, Uruguay da Bolivia. Wasu nau'ikan za'a iya samun su a cikin Caribbean.
Wadannan dabbobin sun gwammace su zauna a cikin dazuzzuka, steppes da kuma rabin hamada. Akwai sanannun nau'in da ke rayuwa har zuwa mita dubu 4 sama da matakin teku.
Menene posum yake ci?
Dorawa dabbobi ne masu cin komai. Abincinsu ya hada da 'ya'yan itatuwa (kamar su inabin daji ko plum), tsaba da hatsi (kamar masarar daga gonaki). Suna iya cin ƙaramin ɗan sanda. Hakanan wasu kadangaru, kwadi, katantanwa, slugs da tsutsotsi suma an sanya su cikin abinci iri-iri. Birdsananan tsuntsaye ma na iya zuwa wurin cin abincin rana. Abincin da aka fi so shine ƙwai tsuntsaye. Opossum ya sami gida, yana manne da jelarsa mai karfi a wani reshe wanda ya fi girma, yana rataye a ƙasa yana satar ƙwai daga gidan.
Tunda yawancin jinsunan opossum suna da kariya daga wasu nau'ikan dafin maciji, macizai suma suna shiga cikin abincin, musamman, wasu nau'in zasu iya farautar rattlesnake.
Hakanan, a cikin yankuna masu yawan gaske, masarauta galibi suna samun abincinsu daga gwangwanayen shara.
Makiya na halitta
Mallaka suna da isassun abokan gaba a mazauninsu.
Ga manya, Foxes da lynxes suna yin barazana. Coyotes kuma galibi suna farautar abubuwan mallaka. Hakanan manyan tsuntsayen ganima suma barazana ne (galibi owls).
Macizai babbar barazana ce ga samari.
Gaskiya mai ban sha'awa
- Ciki a cikin ɗoki yana ɗaukar makonni biyu kawai, ko kuma har zuwa kwanaki 13. Filin da aka haifa kusan yara 25. Su makafi ne gaba daya kuma basu da komai. Tsintsin ya tsaya tare da mahaifiyarsa har zuwa watanni 3 -3.5. Daga shekara biyu da haihuwa, theasan suna tafiya akan bayan uwa, suna riƙe da ulu.
- Ossumia na Virginia yakai gram 0.13 kawai a lokacin haihuwa, kuma tsawon jiki milimita 14 ne.
- Optiums ana tsammanin sune tsoffin dabbobi a duniyarmu. Kuma tsawon shekaru, juyin halitta ya kasance bai canzawa ba.
- Magunguna suna da kariya ta musamman akan masu farauta. Lokacin da dabbar ta ji barazanar, sai ta faɗi a gefenta, matacce. A lokaci guda, fitar da wani wari mai ƙyama da ƙyama, kumfa ya bayyana daga baki, kuma idanuwa suna yin gilashi, dabba kusan yana daina numfashi. Don haka posum yana kwance na dan lokaci har sai barazanar ta wuce.
