Antonia, a cloned black-footed ferret, recently gave birth to two healthy kits at the Smithsonian National Zoo, Colorado Public Radio reported. This marks the first time a cloned endangered animal in ...
Getty Images Dolly the sheep, pictured, became the first cloned mammal when she was born in 1996 It was 10 years later, in 2016, when a vet had to give him the bad news that Princess had cancer.