The following is the translation of the 'Bahasa' text to 'English' while preserving any html tags: "Scientists have used somatic cell nuclear transfer to clone a number of different mammalian species, such as other monkeys, sheep (including Dolly the sheep), cows, and dogs. However, most cloned embryos cannot survive until birth, often due to defects in development and placental structure. According to research, between 1% and 3% of attempts result in live births using conventional cloning methods, although the success rate is slightly higher in cows (5 to 20%)."