Role of chimps in research debated
During Lennie's life under the microscope, science changed.
Communications director Triana Romero talks to chimps, from left, Millie, Scarlett and Thoto, behind their island at the Save the Chimps sanctuary near Fort Pierce, Fla. Animal rights activists have sought such retirement for chimps used in laboratory research.
Ryan yawns at visitors from behind a metal barrier around his living quarters at Save the Chimps sanctuary in Florida.