俄罗斯成功培育两头克隆牛

Core Viewpoint - The successful cultivation of two cloned cows in Russia's Krasnodar region marks a significant advancement in cloning technology, overcoming common challenges associated with cloning large animals [1] Group 1: Cloning Achievement - Two cloned cows named Mirka and Iskorka have been successfully cultivated, with one of them having a normal weight [1] - The cloned calves weigh 32.5 kilograms and 56 kilograms respectively, showcasing the success of the research team in addressing issues related to fetal size during the cloning process [1] Group 2: Scientific Insights - The research team corrected embryonic development issues, successfully tackling the common problem of large fetal size in cloned animals [1] - There is currently no clear scientific explanation for the phenomenon of oversized fetuses during the cloning process, as noted by a researcher from Moscow State University [1]