They're basically viable cells, so someone like Bob Lanza at Advanced Cell Technology took some of that tissue from an endangered animal called the Javan banteng, put it in a cow, the cow went to term, and what was born was a live, healthy baby Javan banteng, who thrived and is still alive.
To su u osnovi održive stanice pa je netko poput Boba Lanze  iz Advanced Cell Technologyja uzeo malo tkiva jedne ugrožene vrste koja se zove javanski banteng, stavio ga u kravu, krava se otelila i rodio se živi zdravi mali javanski banteng koji je napredovao i još uvijek je živ.