She's Dolly and So Are Ewe
Remember Dolly, the cloned sheep? It has only been ten short years since our short-lived, cloven-hoofed friend (preserved as the taxidermied specimen above) was lambed in the lab. The Why Files looks at what's been happened in cloning circles since Dolly first made headlines. Among the developments: better rodeo broncs; transplant-friendly pig organs; and -- get ready for the future -- cloneburgers.