This undated picture released by Durrell Wildlife Conservation Trust on Tuesday, July 10, 2012, shows a Saint Lucia racer snake at an undisclosed location in St. Lucia. At least 11 St. Lucia racers were spotted and tagged by a group of international scientists hunting for the snake that was declared extinct long ago, in the tiny Maria Islands nature reserve just south of the Caribbean island of St. Lucia, according to the British-based Durrell Wildlife Conservation Trust. (AP Photo/Durrell Wildlife Conservation Trust, Gregory Guida)