Halittun teku na Newon da suka daɗe daga nesa sun bayyana ƙarin daidaituwar halittu fiye da yadda ake tsammani da dabbobi a yau, gami da mutane. Kwayoyin halittar salula na farko ba su da gaɓoɓi har ma da kai, amma wasunsu har yanzu suna cikinmu. Wata tawagar da ta hada da Mary Droser da Scott Evans, daga Jami'ar California a Riverside, Amurka ne suka gudanar da binciken, kuma sun mayar da hankali kan dabbobi daga kimanin shekaru miliyan 555 da suka wuce, a karshen lokacin Ediacaran.
Kamar yadda Droser ya bayyana, babu ɗayan waɗannan dabbobin da ke da kai ko kwarangwal. Da yawa daga cikinsu sun yi kama da ƙaƙƙarfan kauri, zagaye tafkunan wanka zaune a gindin teku. Wadannan dabbobin suna da ban mamaki kuma sun sha bamban da na yau da kullum da wuya a sanya su cikin nau'ikan halittu masu rai na zamani ba tare da karin taimako fiye da tantance kamanninsu ba. Duk da haka, samun damar yin amfani da bayanan burbushin halittu masu kyau ya ba wa marubutan binciken damar danganta bayyanar waɗannan dabbobin da halayensu masu yiwuwa tare da tsarin halittar halittu masu rai na yanzu, don haka ya bayyana cewa waɗannan halittu na lokacin Ediacaran suna raba kwayoyin halitta tare da dabbobin yanzu. ciki har da dan Adam.
Don nazarin su, masu binciken sun mayar da hankali ga wakilan dabbobi hudu na fiye da 40 da aka gane nau'in lokacin Ediacaran. Girman waɗannan halittu ya kasance daga ƴan milimita kaɗan zuwa kusan mita a tsayi. A bayyane yake, wasu daga cikin waɗannan dabbobin sun sami damar gyara sassan jikinsu da suka lalace ta hanyar wani tsari da aka sani da apoptosis. Kwayoyin halittar da ke cikin wannan tsari sune mahimman abubuwan da ke cikin tsarin rigakafi na ɗan adam, suna taimakawa, alal misali, kawar da ƙwayoyin cuta masu kamuwa da ƙwayoyin cuta da ƙwayoyin da suka rigaya. Binciken, mai suna Processal Developmental in Ediacaran macrofossils, an buga shi a cikin mujallar ilimi Proceedings of the Royal Society B. Source NCYT of Amazing.
