Cells at San Diego Zoo Lead to Cloning of Endangered Horse
Little Kurt looks like any other baby horse as he frolics playfully in his pen. He isn’t afraid to kick or head-butt an intruder who gets in his way and, when he’s hungry, he dashes over to his mother for milk.But 2-month-old Kurt differs from every other foal of his kind in one distinct way: He’s a clone.The rare, endangered Przewalski’s horse was created from cells taken from a stallion in 1980. They sat frozen at the San Diego Zoo for 40 years before they were fused with an egg from a domestic horse.With the egg’s nucleus removed, ensuring Kurt would be basically all Przewalski’s horse, they were implanted in the mare who would become his mom on Aug. 6.The result, officials say, was the world’s first cloned Przewalski’s horse.Scientists…