The name of the first pet cloned from an adult somatic cell is Dolly the sheep. Cloned in 1996 at the Roslin Institute in Scotland, Dolly was the first mammal to be cloned from an adult somatic cell, utilizing a technique called somatic cell nuclear transfer. Her creation marked a significant milestone in genetic research and cloning, as it challenged previous beliefs about cell differentiation. Dolly lived for about six years and gave birth to several lambs, prompting discussions and ethical debates regarding cloning technology, its implications for medicine, agriculture, and animal welfare.