Ka taƙaita labarin:  Charles Darwin da kansa ya kwatanta su a matsayin 'dabbobi mafi ban mamaki da aka taɓa ganowa' kuma ya yi mamakin yadda suka samo asali. Yanzu masana kimiyya sun gano asirin shekaru 180 na asalin juyin halitta na dabbobi masu shayarwa na Kudancin Amurka waɗanda suka mutu shekaru 10,000 da suka gabata. Dabbobin da ke da ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin cuta. Macrauchenia patachonica mai kafa huɗu, wanda aka nuna a cikin hoton mai zane a sama, ya rikitar da masana kimiyya tun lokacin da burbushin halittu na jinsunan, wanda ya mutu kusan shekaru 10,000 da suka gabata, Charles Darwin ya samo shi shekaru 180 da suka gabata. Amma yanzu da suka bincika sunadarai da ke cikin ƙasusuwan da suka zama burbushi, masana kimiyya sun nuna cewa waɗannan dabbobi suna da nasaba ta kud da kud da dawakai na zamani. Hanyar da suka yi amfani da ita za ta iya ba da ƙarin bayani game da wasu halittu da suka ɓace da daɗewa. Fossil na tsohuwar dabba da aka samo a Amazon na iya zama biri na farko da ya yi tafiya daga Afirka a kan Tekun Atlantika zuwa Kudancin Amirka. Binciken ya nuna cewa birai sun fara zuwa Kudancin Amirka kusan shekaru miliyan 10 da suka gabata fiye da yadda aka yi zato. Masana kimiyya sun yi imanin cewa dabbobi na farko sun yi tafiya zuwa Kudancin Amirka, wadda ta kasance tsibirin da aka ware kafin ta shiga Arewacin Amirka shekaru miliyan uku da suka wuce, daga Afirka a kan raƙuman ruwa na halitta da suka tashi a fadin Atlantic Ocean. Kungiyoyin dabbobi biyu na farko sun samo asali daban don ƙirƙirar iyalai daban-daban na dabbobi. Duk da haka, shaidar lokacin da wannan tafiya mai ban mamaki ya faru ya kasance m kuma mafi tsufa burbushin burbushin da aka samu a cikin New World ya kasance shekaru miliyan 26 da aka samu a Bolivia. Amma yanzu burbushin hakora, da aka samo a bakin kogi a wani yanki na Amazon a Peru, wanda aka tsara shekaru miliyan 36 da suka gabata ya nuna cewa ƙetare daga Afirka na iya faruwa tun da daɗewa. Sake gina Perupithecus ucayalensis mai shekaru miliyan 38 (hagu) da aka samo a Kudancin Amurka an nuna shi a sama tare da nau'in da yake kama da shi - Talahpithecus parvus, cewa...
Masu bincike sun duba burbushin halittu 48 na dabbobi masu dabbobi daga Kudancin Amirka. Charles Darwin ne ya fara gano jinsunan - Toxodon plantensis da Macrauchenia patachonica - a Uruguay da Argentina shekaru 180 da suka gabata. Masana ilimin halittu sun yi gwagwarmaya don yanke shawara ko dabbobin da ba su da kyau sun fi kusa da rodents, raƙuma ko giwaye. Masana kimiyya sun kirkiro wata sabuwar dabara don nazarin sunadarai a cikin kasusuwa wanda zai iya bayyana alaƙa tsakanin dabbobi da suka mutu miliyoyin shekaru da suka wuce. Hanyar na iya kaiwa baya cikin lokaci fiye da tsohuwar nazarin DNA. Sun gano cewa dabbobin da suka mutu a Kudancin Amirka suna da alaka da dawakai. Sabuwar dabarar da ake kira proteomics - na iya kawo sauyi a fannin ilimin halittu.