Scientists reverse vasectomy on endangered horse

By BRETT ZONGKER, Associated Press Writer Mon Jun 16, 7:13 PM ET ----- This photograph released by the Smithsonian's National Zoo shows a Przewalski horse named 'Minnesota' at the Smithsonian's National Zoo grazing in his yard on July 2, 2005. ----- WASHINGTON - Scientists at the Smithsonian Institution's National Zoo revealed Monday that they have… Continue reading Scientists reverse vasectomy on endangered horse