The first hybrid human clone was created in November 1998, by Advanced Cell Technologies.[4] It was created from a man's leg cell, and a cow's egg whose DNA was removed. It was destroyed after 12 days. Since a normal embryo implants at 14 days, Dr Robert Lanza, ACT's director of tissue engineering, told the Daily Mail newspaper that the embryo could not be seen as a person before 14 days. While making an embryo, which might have resulted in a complete human had it been allowed to come to term, according to ACT: «[ACT's] aim was ‹therapeutic cloning› not ‹reproductive cloning›»

Кто же знал, что эмбрион на самом деле выжил.