The main principle behind cloning is the creation of a genetically identical organism or cell from a single source cell. In biological terms, this often involves extracting the nucleus from a somatic cell and inserting it into an enucleated egg cell, a process known as somatic cell nuclear transfer (SCNT). Cloning aims to reproduce an organism with the same genetic material, and it has applications in medicine, agriculture, and conservation. However, ethical concerns surrounding cloning, particularly in humans and animals, have sparked debates around its implications for biodiversity and the nature of individuality.